3 years ago

Complete the solution of the equation. fine the value of y when x equals 4.

Mathematics

2 answers:

Helen [10]3 years ago

7 0

y = - 5

substitute the value of x = 4 into the equation and solve for y

- 12 + 9y = - 57 ( add 12 to both sides )

9y = - 45 ( divide both sides by 9 )

y = $\frac{-45}{9}$ = - 5

lisov135 [29]3 years ago

5 0

-3(-4)+9y=-57

12+9y=-57

9y=-57-12

9y=-69

9y/9=69/9

y=-23/3

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