-y-2y=18+6

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Solution for -y-2y=18+6 equation: 


Simplifying
-1y + -2y = 18 + 6

Combine like terms: -1y + -2y = -3y
-3y = 18 + 6

Combine like terms: 18 + 6 = 24
-3y = 24

Solving
-3y = 24

Solving for variable 'y'.

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

Divide each side by '-3'.
y = -8

Simplifying
y = -8

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