7-1-5-7=28

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Solution for 7-1-5-7=28 equation: 


Simplifying
7 + -1 + -5 + -7 = 28

Combine like terms: 7 + -1 = 6
6 + -5 + -7 = 28

Combine like terms: 6 + -5 = 1
1 + -7 = 28

Combine like terms: 1 + -7 = -6
-6 = 28

Solving
-6 = 28

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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