1x+3-1x+1=7

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Solution for 1x+3-1x+1=7 equation: 


Simplifying
1x + 3 + -1x + 1 = 7

Reorder the terms:
3 + 1 + 1x + -1x = 7

Combine like terms: 3 + 1 = 4
4 + 1x + -1x = 7

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