5(z-1)=7(z+3)

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Solution for 5(z-1)=7(z+3) equation: 



5(z-1)=7(z+3)

We move all terms to the left:

5(z-1)-(7(z+3))=0

We multiply parentheses

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



We calculate terms in parentheses: -(7(z+3)), so:

7(z+3)

We multiply parentheses

7z+21

Back to the equation:

-(7z+21)



We get rid of parentheses

5z-7z-21-5=0

We add all the numbers together, and all the variables

-2z-26=0

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

-2z=26

z=26/-2

z=-13

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