-8(y-9)=-9y

Solution for -8(y-9)=-9y equation:

Simplifying
-8(y + -9) = -9y

Reorder the terms:
-8(-9 + y) = -9y
(-9 * -8 + y * -8) = -9y
(72 + -8y) = -9y

Solving
72 + -8y = -9y

Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Add '9y' to each side of the equation.
72 + -8y + 9y = -9y + 9y

Combine like terms: -8y + 9y = 1y
72 + 1y = -9y + 9y

Combine like terms: -9y + 9y = 0
72 + 1y = 0

Add '-72' to each side of the equation.
72 + -72 + 1y = 0 + -72

Combine like terms: 72 + -72 = 0
0 + 1y = 0 + -72
1y = 0 + -72

Combine like terms: 0 + -72 = -72
1y = -72

Divide each side by '1'.
y = -72

Simplifying
y = -72