5z/7-21=21-3z/7

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Solution for 5z/7-21=21-3z/7 equation: 



5z/7-21=21-3z/7

We move all terms to the left:

5z/7-21-(21-3z/7)=0

We add all the numbers together, and all the variables

5z/7-(-3z/7+21)-21=0

We get rid of parentheses

5z/7+3z/7-21-21=0

We multiply all the terms by the denominator


5z+3z-21*7-21*7=0

We add all the numbers together, and all the variables

8z-294=0

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

8z=294

z=294/8

z=36+3/4

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