-y-3y=8-12

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


Simplifying
-1y + -3y = 8 + -12

Combine like terms: -1y + -3y = -4y
-4y = 8 + -12

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

Solving
-4y = -4

Solving for variable 'y'.

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

Divide each side by '-4'.
y = 1

Simplifying
y = 1

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