12-x=3

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Solution for 12-x=3 equation:


Simplifying
12 + -1x = 3

Solving
12 + -1x = 3

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 = 3 + -12

Combine like terms: 12 + -12 = 0
0 + -1x = 3 + -12
-1x = 3 + -12

Combine like terms: 3 + -12 = -9
-1x = -9

Divide each side by '-1'.
x = 9

Simplifying
x = 9

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