20=12y-7y

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Solution for 20=12y-7y equation:


Simplifying
20 = 12y + -7y

Combine like terms: 12y + -7y = 5y
20 = 5y

Solving
20 = 5y

Solving for variable 'y'.

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

Add '-5y' to each side of the equation.
20 + -5y = 5y + -5y

Combine like terms: 5y + -5y = 0
20 + -5y = 0

Add '-20' to each side of the equation.
20 + -20 + -5y = 0 + -20

Combine like terms: 20 + -20 = 0
0 + -5y = 0 + -20
-5y = 0 + -20

Combine like terms: 0 + -20 = -20
-5y = -20

Divide each side by '-5'.
y = 4

Simplifying
y = 4

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