8+-9+3y=12

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Solution for 8+-9+3y=12 equation: 


Simplifying
8 + -9 + 3y = 12

Combine like terms: 8 + -9 = -1
-1 + 3y = 12

Solving
-1 + 3y = 12

Solving for variable 'y'.

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

Add '1' to each side of the equation.
-1 + 1 + 3y = 12 + 1

Combine like terms: -1 + 1 = 0
0 + 3y = 12 + 1
3y = 12 + 1

Combine like terms: 12 + 1 = 13
3y = 13

Divide each side by '3'.
y = 4.333333333

Simplifying
y = 4.333333333

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