-7=z/(-3)

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Solution for -7=z/(-3) equation:



-7=z/(-3)
We move all terms to the left:
-7-(z/(-3))=0
We multiply all the terms by the denominator
-(z-7*(-3))=0
We calculate terms in parentheses: -(z-7*(-3)), so:
z-7*(-3)
We add all the numbers together, and all the variables
z+21
Back to the equation:
-(z+21)
We get rid of parentheses
-z-21=0
We add all the numbers together, and all the variables
-1z-21=0
We move all terms containing z to the left, all other terms to the right
-z=21
z=21/-1
z=-21

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