-2(1+y)=7

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


Simplifying
-2(1 + y) = 7
(1 * -2 + y * -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 = 9
-2y = 9

Divide each side by '-2'.
y = -4.5

Simplifying
y = -4.5

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