31-56=x

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Solution for 31-56=x equation:


Simplifying
31 + -56 = x

Combine like terms: 31 + -56 = -25
-25 = x

Solving
-25 = x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
-25 + -1x = x + -1x

Combine like terms: x + -1x = 0
-25 + -1x = 0

Add '25' to each side of the equation.
-25 + 25 + -1x = 0 + 25

Combine like terms: -25 + 25 = 0
0 + -1x = 0 + 25
-1x = 0 + 25

Combine like terms: 0 + 25 = 25
-1x = 25

Divide each side by '-1'.
x = -25

Simplifying
x = -25

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