12-x=31

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Solution for 12-x=31 equation:


Simplifying
12 + -1x = 31

Solving
12 + -1x = 31

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 = 31 + -12

Combine like terms: 12 + -12 = 0
0 + -1x = 31 + -12
-1x = 31 + -12

Combine like terms: 31 + -12 = 19
-1x = 19

Divide each side by '-1'.
x = -19

Simplifying
x = -19

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