3*7+7-7=

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Solution for 3*7+7-7= equation: 


Simplifying
3 * 7 + 7 + -7 = 0

Multiply 3 * 7
21 + 7 + -7 = 0

Combine like terms: 21 + 7 = 28
28 + -7 = 0

Combine like terms: 28 + -7 = 21
21 = 0

Solving
21 = 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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