21=z/5

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Solution for 21=z/5 equation: 



21=z/5

We move all terms to the left:

21-(z/5)=0

We add all the numbers together, and all the variables

-(+z/5)+21=0

We get rid of parentheses

-z/5+21=0

We multiply all the terms by the denominator


-z+21*5=0

We add all the numbers together, and all the variables

-1z+105=0

We move all terms containing z to the left, all other terms to the right

-z=-105

z=-105/-1

z=+105

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