-1+3*7=

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Solution for -1+3*7= equation: 


Simplifying
-1 + 3 * 7 = 0

Multiply 3 * 7
-1 + 21 = 0

Combine like terms: -1 + 21 = 20
20 = 0

Solving
20 = 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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