2(1-y)=7

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Solution for 2(1-y)=7 equation: 


Simplifying
2(1 + -1y) = 7
(1 * 2 + -1y * 2) = 7
(2 + -2y) = 7

Solving
2 + -2y = 7

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 + -2y = 7 + -2

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

Combine like terms: 7 + -2 = 5
-2y = 5

Divide each side by '-2'.
y = -2.5

Simplifying
y = -2.5

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