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January 28, 2015

January 28, 2015

Posted by **brittney** on Tuesday, August 24, 2010 at 5:58pm.

4y = x - 13

2x + 16y = 20

- algebra -
**Henry**, Tuesday, August 24, 2010 at 6:19pmWrite 1st Eq in STD form:

x - 4y = 13

2x + 16y = 20

Multiply 1st Eq by -2:

-2x + 8y = -26

2x + 16y = 20

Add the 2 Eq:

24y = -6

y = -1/4

Substitute -1/4 for y in the 1st Eq

and solve for x:

x - 4(-1/4) 13

x = 12.

(12 , -1/4).

- algebra -
**k-dog**, Wednesday, May 9, 2012 at 6:02pm3x + 4y = -12

6x + 8y =-16

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