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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We multiply parentheses

-35a-(5a-3(a+5))+15+7=0



We calculate terms in parentheses: -(5a-3(a+5)), so:

5a-3(a+5)

We multiply parentheses

5a-3a-15

We add all the numbers together, and all the variables

2a-15

Back to the equation:

-(2a-15)



We add all the numbers together, and all the variables

-35a-(2a-15)+22=0

We get rid of parentheses

-35a-2a+15+22=0

We add all the numbers together, and all the variables

-37a+37=0

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

-37a=-37

a=-37/-37

a=1

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