Question

Complete the solution of the equation. Find the
value of y when x equals -12.
-6x - 3y = 57

Answer 1

Answer:

Y=5

Step-by-step explanation:

x = -12( given)

-6 X( -12) -3y = 57

72-3y = 57

-3y=57-72

-3y= -15

Y=-15/-3

Y=5

Answer 2

Answer:

$y=5$

Step-by-step explanation:

we have the expression:

$-6x - 3y = 57$

and we are told that $x=-12$, so we must substitute this value in the previous equation and then clear for the variable y:

substituting x:

$-6(-12)-3y=57$

clearing for y:

$72-3y=57\\-3y=57-72\\-3y=-15\\y=\frac{-15}{-3}\\ y=5$

and we can corroborate this result by substituting the values in the original equation

$-6(-12)-3(5)=72-15=57$