9y-2(y-1)=9

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Solution for 9y-2(y-1)=9 equation: 


Simplifying
9y + -2(y + -1) = 9

Reorder the terms:
9y + -2(-1 + y) = 9
9y + (-1 * -2 + y * -2) = 9
9y + (2 + -2y) = 9

Reorder the terms:
2 + 9y + -2y = 9

Combine like terms: 9y + -2y = 7y
2 + 7y = 9

Solving
2 + 7y = 9

Solving for variable 'y'.

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

Add '-2' to each side of the equation.
2 + -2 + 7y = 9 + -2

Combine like terms: 2 + -2 = 0
0 + 7y = 9 + -2
7y = 9 + -2

Combine like terms: 9 + -2 = 7
7y = 7

Divide each side by '7'.
y = 1

Simplifying
y = 1

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