-2(1-2y)-y=7

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


Simplifying
-2(1 + -2y) + -1y = 7
(1 * -2 + -2y * -2) + -1y = 7
(-2 + 4y) + -1y = 7

Combine like terms: 4y + -1y = 3y
-2 + 3y = 7

Solving
-2 + 3y = 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 + 3y = 7 + 2

Combine like terms: -2 + 2 = 0
0 + 3y = 7 + 2
3y = 7 + 2

Combine like terms: 7 + 2 = 9
3y = 9

Divide each side by '3'.
y = 3

Simplifying
y = 3

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