Posted by **Tonia** on Wednesday, April 21, 2010 at 8:41pm.

solve by the substitution method.

8x+3y=-40

x=48-7y

THE ANSWER SHOULD BE AN ORDERED PAIR. PLEASE HELP ASAP

- college Algebra -
**Mrs P**, Wednesday, April 21, 2010 at 9:42pm
First you need to replace the x in the original equation with the given variable 48-7y

8(48-7y) + 3y = -40

384 -56y +3y=-40

-56y + 3y = -40 - 384

-53y = -424

-53y/-53=-424/-53

y=8 x=-8

Ordered pair (8,-8)

- college Algebra -
**Mrs P**, Wednesday, April 21, 2010 at 9:50pm
sorry, I typed ordered pair wrong, the ordered pair is (-8, 8)

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