31-x=171

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Solution for 31-x=171 equation: 


Simplifying
31 + -1x = 171

Solving
31 + -1x = 171

Solving for variable 'x'.

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

Add '-31' to each side of the equation.
31 + -31 + -1x = 171 + -31

Combine like terms: 31 + -31 = 0
0 + -1x = 171 + -31
-1x = 171 + -31

Combine like terms: 171 + -31 = 140
-1x = 140

Divide each side by '-1'.
x = -140

Simplifying
x = -140

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