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 = -9
-3y = -9

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

Simplifying
y = 3

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