138-x=138-690

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Solution for 138-x=138-690 equation:


Simplifying
138 + -1x = 138 + -690

Combine like terms: 138 + -690 = -552
138 + -1x = -552

Solving
138 + -1x = -552

Solving for variable 'x'.

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

Add '-138' to each side of the equation.
138 + -138 + -1x = -552 + -138

Combine like terms: 138 + -138 = 0
0 + -1x = -552 + -138
-1x = -552 + -138

Combine like terms: -552 + -138 = -690
-1x = -690

Divide each side by '-1'.
x = 690

Simplifying
x = 690

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