138-x=45

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Solution for 138-x=45 equation: 


Simplifying
138 + -1x = 45

Solving
138 + -1x = 45

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 = 45 + -138

Combine like terms: 138 + -138 = 0
0 + -1x = 45 + -138
-1x = 45 + -138

Combine like terms: 45 + -138 = -93
-1x = -93

Divide each side by '-1'.
x = 93

Simplifying
x = 93

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