-15+x=x+20

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Solution for -15+x=x+20 equation: 


Simplifying
-15 + x = x + 20

Reorder the terms:
-15 + x = 20 + x

Add '-1x' to each side of the equation.
-15 + x + -1x = 20 + x + -1x

Combine like terms: x + -1x = 0
-15 + 0 = 20 + x + -1x
-15 = 20 + x + -1x

Combine like terms: x + -1x = 0
-15 = 20 + 0
-15 = 20

Solving
-15 = 20

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

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