20+3y=12

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Solution for 20+3y=12 equation: 


Simplifying
20 + 3y = 12

Solving
20 + 3y = 12

Solving for variable 'y'.

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

Add '-20' to each side of the equation.
20 + -20 + 3y = 12 + -20

Combine like terms: 20 + -20 = 0
0 + 3y = 12 + -20
3y = 12 + -20

Combine like terms: 12 + -20 = -8
3y = -8

Divide each side by '3'.
y = -2.666666667

Simplifying
y = -2.666666667

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