-18-3y=9

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Solution for -18-3y=9 equation: 


Simplifying
-18 + -3y = 9

Solving
-18 + -3y = 9

Solving for variable 'y'.

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

Add '18' to each side of the equation.
-18 + 18 + -3y = 9 + 18

Combine like terms: -18 + 18 = 0
0 + -3y = 9 + 18
-3y = 9 + 18

Combine like terms: 9 + 18 = 27
-3y = 27

Divide each side by '-3'.
y = -9

Simplifying
y = -9

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