EPT1. -6x=30
2. 1/2x=3/4
3.2x5=5x-2
4. 2(x-1)=3x+5
5. 6x-(x+3)=4x
6. 1/2+1/3+1/x
8. 6-x=7-3x
10. 3.5y-6=4.5y+1
Math Help
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{CC}StealthBlue
United States41117 Posts
1. -6x=30 2. 1/2x=3/4 3.2x5=5x-2 4. 2(x-1)=3x+5 5. 6x-(x+3)=4x 6. 1/2+1/3+1/x 8. 6-x=7-3x 10. 3.5y-6=4.5y+1 | ||
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Caller
Poland8075 Posts
/-6 /-6 x = -5 1/2x = 3/4 /(1/2) /(1/2) x = 6/4 = 3/2 3.2x5=5x-2 10 = 5x-2 +2 +2 12=5x /5 /5 x = 12/5 4. 2(x-1)=3x+5 2x -2 = 3x+5 -5-2x -5-2x x = -7 5. 6x-(x+3)=4x 6x - x - 3 = 4x -5x - 5x -3 = -x /-1 /-1 x = 3 6. 1/2+1/3+1/x (3/6) + (2/6) = 1/x 5/6 = 1/x X x X x /6/5 /6/5 x = 6/5 8. 6-x=7-3x +x-7 +x-7 -1 = -2x /-2 /-2 x = 1/2 10. 3.5y-6=4.5y+1 -3.5y-1 -3.5y-1 y = -7 | ||
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BuGzlToOnl
United States5918 Posts
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CTStalker
Canada9720 Posts
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Nytefish
United Kingdom4282 Posts
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B1nary
Canada1267 Posts
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CapO
United States1615 Posts
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Boblion
France8043 Posts
On March 14 2008 08:41 BuGzlToOnl wrote: lol n00b | ||
Purind
Canada3562 Posts
Here, I just found this: http://mathworld.wolfram.com/DivergenceTheorem.html it might help Question 6 is friggin hard, I seriously have no clue how to do that | ||
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decafchicken
United States20166 Posts
On March 14 2008 08:24 {CC}StealthBlue wrote: Solve show all steps. 1. -6x=30 2. 1/2x=3/4 3.2x5=5x-2 4. 2(x-1)=3x+5 5. 6x-(x+3)=4x 6. 1/2+1/3+1/x 8. 6-x=7-3x 10. 3.5y-6=4.5y+1 need help with middle school algebra?  | ||
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werd
19 Posts
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YoUr_KiLLeR
United States3420 Posts
On March 14 2008 10:00 Purind wrote: Question 6 is friggin hard, I seriously have no clue how to do that cuz its not set equal to anything so you cant solve for x. | ||
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chrusher97
Canada811 Posts
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paper
13196 Posts
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chrusher97
Canada811 Posts
On March 14 2008 10:15 YoUr_KiLLeR wrote: cuz its not set equal to anything so you cant solve for x. Im guessing youd just assume = 0 | ||
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Equinox_kr
United States7395 Posts
On March 14 2008 10:17 paper wrote: 1+1=2 WAIT WHAT? | ||
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CTStalker
Canada9720 Posts
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{CC}StealthBlue
United States41117 Posts
edit: Which* | ||
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SIUnit
China288 Posts
You know, back in China when a second grader can't answer those questions the teachers have a ruler on standby to beat the living **** out of him/her. Your nephew's mom might want to try that, it's surprisingly effective. | ||
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skyglow1
New Zealand3962 Posts
On March 14 2008 09:22 CapO wrote: hi romanians =] | ||
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infinity21
Canada6683 Posts
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CapO
United States1615 Posts
On March 14 2008 11:11 infinity21 wrote: holy shit #7 is so hard... I have no idea how to solve that. i used to know how to do this shit so easily, but now i sorta forgot most of it. someone help me understand #7 plz? =/ | ||
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decafchicken
United States20166 Posts
On March 14 2008 10:38 {CC}StealthBlue wrote: It actually for my nephew whose mom gave it to him, he's in 5th grade. Which I think is cruel but w/e. edit: Which* a) you cant do it b) his mom cant do it c) he cant do it only c is mildly acceptable. | ||
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QuanticHawk
United States32154 Posts
factoring, grouping, etc... i wanna shoot myself. | ||
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EmeraldSparks
United States1451 Posts
-6x + 6 = 30 + 6 x = 36 | ||
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ShaLLoW[baY]
Canada12499 Posts
On March 14 2008 12:50 EmeraldSparks wrote: -6x=30 -6x + 6 = 30 + 6 x = 36 Did you use implicit differentiation or Newton's linear approximation method for this one? | ||
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EmeraldSparks
United States1451 Posts
On March 14 2008 12:52 ShaLLoW[baY] wrote: Did you use implicit differentiation or Newton's linear approximation method for this one? Both. | ||
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Blind
United States2529 Posts
On March 14 2008 08:30 Caller wrote: How'd you get from the first line to the second line? Final answer should be just 5/6 + 1/x.6. 1/2+1/3+1/x (3/6) + (2/6) = 1/x 5/6 = 1/x X x X x /6/5 /6/5 x = 6/5 | ||
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decafchicken
United States20166 Posts
On March 14 2008 15:00 Blind wrote: How'd you get from the first line to the second line? Final answer should be just 5/6 + 1/x. He was showing his work? LCD and then added them. by the way, it should be 5/6 = -1/x; you just moved it to the other side w/out subtracting. | ||
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Blind
United States2529 Posts
1/2 + 1/3 + 1/x = 0 Sorry if I'm missing something obvious. Though realistically, the OP probably meant the latter, or he meant 1/2 + 1/3 = 1/x | ||
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