12-20=2y+2y

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Solution for 12-20=2y+2y equation:


Simplifying
12 + -20 = 2y + 2y

Combine like terms: 12 + -20 = -8
-8 = 2y + 2y

Combine like terms: 2y + 2y = 4y
-8 = 4y

Solving
-8 = 4y

Solving for variable 'y'.

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

Add '-4y' to each side of the equation.
-8 + -4y = 4y + -4y

Combine like terms: 4y + -4y = 0
-8 + -4y = 0

Add '8' to each side of the equation.
-8 + 8 + -4y = 0 + 8

Combine like terms: -8 + 8 = 0
0 + -4y = 0 + 8
-4y = 0 + 8

Combine like terms: 0 + 8 = 8
-4y = 8

Divide each side by '-4'.
y = -2

Simplifying
y = -2

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