-2(9-y)=8

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Solution for -2(9-y)=8 equation: 


Simplifying
-2(9 + -1y) = 8
(9 * -2 + -1y * -2) = 8
(-18 + 2y) = 8

Solving
-18 + 2y = 8

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 = 8 + 18

Combine like terms: -18 + 18 = 0
0 + 2y = 8 + 18
2y = 8 + 18

Combine like terms: 8 + 18 = 26
2y = 26

Divide each side by '2'.
y = 13

Simplifying
y = 13

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