7(7z+10)=9(5z+10)

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Solution for 7(7z+10)=9(5z+10) equation: 



7(7z+10)=9(5z+10)

We move all terms to the left:

7(7z+10)-(9(5z+10))=0

We multiply parentheses

49z-(9(5z+10))+70=0



We calculate terms in parentheses: -(9(5z+10)), so:

9(5z+10)

We multiply parentheses

45z+90

Back to the equation:

-(45z+90)



We get rid of parentheses

49z-45z-90+70=0

We add all the numbers together, and all the variables

4z-20=0

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

4z=20

z=20/4

z=5

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