20-8-7=

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Solution for 20-8-7= equation: 


Simplifying
20 + -8 + -7 = 0

Combine like terms: 20 + -8 = 12
12 + -7 = 0

Combine like terms: 12 + -7 = 5
5 = 0

Solving
5 = 0

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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