18-3y=12-y

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Solution for 18-3y=12-y equation:


Simplifying
18 + -3y = 12 + -1y

Solving
18 + -3y = 12 + -1y

Solving for variable 'y'.

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

Add 'y' to each side of the equation.
18 + -3y + y = 12 + -1y + y

Combine like terms: -3y + y = -2y
18 + -2y = 12 + -1y + y

Combine like terms: -1y + y = 0
18 + -2y = 12 + 0
18 + -2y = 12

Add '-18' to each side of the equation.
18 + -18 + -2y = 12 + -18

Combine like terms: 18 + -18 = 0
0 + -2y = 12 + -18
-2y = 12 + -18

Combine like terms: 12 + -18 = -6
-2y = -6

Divide each side by '-2'.
y = 3

Simplifying
y = 3

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