elana2017 elana2017

02-02-2017
Mathematics

contestada

What is the value of y when x equals 4 in the equation -3x+9y=-57?

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jippyisawesome jippyisawesome

02-02-2017

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?

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claudiasilveir claudiasilveir

02-02-2017

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

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