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April 20, 2014

April 20, 2014

Posted by **ashley** on Friday, November 5, 2010 at 9:17pm.

x + 4y = –16

3x + 2y = 12

- math -
**Jen**, Saturday, November 6, 2010 at 11:43amx+4y=-16 (1)

3x+2y=12 (2)

Multiply (1) by -3 to get the x's to cancel

-3x-12y=48 (3)

3x+2y=12 (2)

Now add (3) and (2) together.

-10y=60

Divide by -10.

y=-6

Substitude y=-6 into equation (1) or (2) to solve for x.

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