x-4=7+x

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Solution for x-4=7+x equation: 


Simplifying
x + -4 = 7 + x

Reorder the terms:
-4 + x = 7 + x

Add '-1x' to each side of the equation.
-4 + x + -1x = 7 + x + -1x

Combine like terms: x + -1x = 0
-4 + 0 = 7 + x + -1x
-4 = 7 + x + -1x

Combine like terms: x + -1x = 0
-4 = 7 + 0
-4 = 7

Solving
-4 = 7

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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