2=2(y-1)-y

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


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

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

Combine like terms: 2y + -1y = 1y
2 = -2 + 1y

Solving
2 = -2 + 1y

Solving for variable 'y'.

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

Add '-1y' to each side of the equation.
2 + -1y = -2 + 1y + -1y

Combine like terms: 1y + -1y = 0
2 + -1y = -2 + 0
2 + -1y = -2

Add '-2' to each side of the equation.
2 + -2 + -1y = -2 + -2

Combine like terms: 2 + -2 = 0
0 + -1y = -2 + -2
-1y = -2 + -2

Combine like terms: -2 + -2 = -4
-1y = -4

Divide each side by '-1'.
y = 4

Simplifying
y = 4

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