-2(y-1)=7y+20

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Solution for -2(y-1)=7y+20 equation:


Simplifying
-2(y + -1) = 7y + 20

Reorder the terms:
-2(-1 + y) = 7y + 20
(-1 * -2 + y * -2) = 7y + 20
(2 + -2y) = 7y + 20

Reorder the terms:
2 + -2y = 20 + 7y

Solving
2 + -2y = 20 + 7y

Solving for variable 'y'.

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

Add '-7y' to each side of the equation.
2 + -2y + -7y = 20 + 7y + -7y

Combine like terms: -2y + -7y = -9y
2 + -9y = 20 + 7y + -7y

Combine like terms: 7y + -7y = 0
2 + -9y = 20 + 0
2 + -9y = 20

Add '-2' to each side of the equation.
2 + -2 + -9y = 20 + -2

Combine like terms: 2 + -2 = 0
0 + -9y = 20 + -2
-9y = 20 + -2

Combine like terms: 20 + -2 = 18
-9y = 18

Divide each side by '-9'.
y = -2

Simplifying
y = -2

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