18-y=y

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Solution for 18-y=y equation:


Simplifying
18 + -1y = y

Solving
18 + -1y = y

Solving for variable 'y'.

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

Add '-1y' to each side of the equation.
18 + -1y + -1y = y + -1y

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

Combine like terms: y + -1y = 0
18 + -2y = 0

Add '-18' to each side of the equation.
18 + -18 + -2y = 0 + -18

Combine like terms: 18 + -18 = 0
0 + -2y = 0 + -18
-2y = 0 + -18

Combine like terms: 0 + -18 = -18
-2y = -18

Divide each side by '-2'.
y = 9

Simplifying
y = 9

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