-2(y-9)=-90

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Solution for -2(y-9)=-90 equation: 


Simplifying
-2(y + -9) = -90

Reorder the terms:
-2(-9 + y) = -90
(-9 * -2 + y * -2) = -90
(18 + -2y) = -90

Solving
18 + -2y = -90

Solving for variable 'y'.

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

Add '-18' to each side of the equation.
18 + -18 + -2y = -90 + -18

Combine like terms: 18 + -18 = 0
0 + -2y = -90 + -18
-2y = -90 + -18

Combine like terms: -90 + -18 = -108
-2y = -108

Divide each side by '-2'.
y = 54

Simplifying
y = 54

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