Respuesta :

jippyisawesome
so what you would do is put in the 4 where ever you see an x. so it would look like -3(4)+9y=-57 then you solve for y. and the answer is -5. Make sense?

claudiasilveir
-3(4) +9Y=-57
12+9y=-57
9y=-57+12
9y=-45
y=-5

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