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March 31, 2015

March 31, 2015

Posted by **briana** on Thursday, February 17, 2011 at 8:17pm.

3x + 7y = −3 (1)

7x + y = −53 (2)

Find the value of x.

(part 2 of 2)Find the value of y.

- algebra 2 -
**Reiny**, Thursday, February 17, 2011 at 8:22pmfor (2)

y = -7x - 53

sub into (1)

3x + 7(-7x-53) = -3

3x - 49x - 371 = -3

-46x = 368

x = -8

sub that back into y = .... to get y

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