7+2-x=31

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Solution for 7+2-x=31 equation:


Simplifying
7 + 2 + -1x = 31

Combine like terms: 7 + 2 = 9
9 + -1x = 31

Solving
9 + -1x = 31

Solving for variable 'x'.

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

Add '-9' to each side of the equation.
9 + -9 + -1x = 31 + -9

Combine like terms: 9 + -9 = 0
0 + -1x = 31 + -9
-1x = 31 + -9

Combine like terms: 31 + -9 = 22
-1x = 22

Divide each side by '-1'.
x = -22

Simplifying
x = -22

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