4+-2y+-y=12

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Solution for 4+-2y+-y=12 equation: 


Simplifying
4 + -2y + -1y = 12

Combine like terms: -2y + -1y = -3y
4 + -3y = 12

Solving
4 + -3y = 12

Solving for variable 'y'.

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

Add '-4' to each side of the equation.
4 + -4 + -3y = 12 + -4

Combine like terms: 4 + -4 = 0
0 + -3y = 12 + -4
-3y = 12 + -4

Combine like terms: 12 + -4 = 8
-3y = 8

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

Simplifying
y = -2.666666667

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