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December 22, 2014

December 22, 2014

Posted by **mike** on Wednesday, March 18, 2009 at 7:09pm.

4x-2y=32

-3x-5y=-11

- 9th grade Algebra -
**bobpursley**, Wednesday, March 18, 2009 at 7:16pmI would multiply the top equation by 5, and the bottom equation by 2

20x-10y=160

-6x-10y=-22

then subtract the bottom equation (remember to change the signs)

26x=182 solve for x.

- 9th grade Algebra -
**mike**, Wednesday, March 18, 2009 at 7:21pmalright i got x=7 but now what do i do?

- 9th grade Algebra -
**bobpursley**, Wednesday, March 18, 2009 at 7:25pmGo back to either of the original equations, put in 7 for x, and solve for y.

- 9th grade Algebra -
**mike**, Wednesday, March 18, 2009 at 7:33pmso for example

4(7)-2y=32 or -3(7)-5y=-11

and then it equals 28-2y=32 or

-21-5y=-11

then what from their this is driving me insane!

- 9th grade Algebra -
**bobpursley**, Wednesday, March 18, 2009 at 7:41pmadd 21 to each side.

divide each side by -5

I think the answer is y=2,but you better check.

- 9th grade Algebra -
**bobpursley**, Wednesday, March 18, 2009 at 7:42pmYep, 2 is almost right, but not quite. Check to see why.

- 9th grade Algebra -
**mike**, Wednesday, March 18, 2009 at 7:46pmi honestly cannot not get this problem, i guess it wont kill me to miss 1 assignment

- 9th grade Algebra -
**bety**, Sunday, September 20, 2009 at 2:06pm-2x+3y=-12

- 9th grade Algebra -
**Trevor**, Thursday, November 5, 2009 at 4:45pm2x+y=10

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