3(a+5)=5(a-7)

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



3(a+5)=5(a-7)

We move all terms to the left:

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

We multiply parentheses

3a-(5(a-7))+15=0



We calculate terms in parentheses: -(5(a-7)), so:

5(a-7)

We multiply parentheses

5a-35

Back to the equation:

-(5a-35)



We get rid of parentheses

3a-5a+35+15=0

We add all the numbers together, and all the variables

-2a+50=0

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

-2a=-50

a=-50/-2

a=+25

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