12-x=15-2y

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Solution for 12-x=15-2y equation: 


Simplifying
12 + -1x = 15 + -2y

Solving
12 + -1x = 15 + -2y

Solving for variable 'x'.

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

Add '-12' to each side of the equation.
12 + -12 + -1x = 15 + -12 + -2y

Combine like terms: 12 + -12 = 0
0 + -1x = 15 + -12 + -2y
-1x = 15 + -12 + -2y

Combine like terms: 15 + -12 = 3
-1x = 3 + -2y

Divide each side by '-1'.
x = -3 + 2y

Simplifying
x = -3 + 2y

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