(-7)x3=-21

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Solution for (-7)x3=-21 equation: 



(-7)x3=-21

We move all terms to the left:

(-7)x3-(-21)=0

We add all the numbers together, and all the variables

(-7)x3+21=0

We multiply parentheses

-7x^3+21=0

We do not support expression: x^3

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