7(0)=21

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Solution for 7(0)=21 equation: 


Simplifying
7(0) = 21

Multiply 7 * 0
0 = 21

Anything times zero is zero.
0 = 21

Solving
0 = 21

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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