-3(7-3a)+2a=5(2a-4)

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Solution for -3(7-3a)+2a=5(2a-4) equation: 



-3(7-3a)+2a=5(2a-4)

We move all terms to the left:

-3(7-3a)+2a-(5(2a-4))=0

We add all the numbers together, and all the variables

-3(-3a+7)+2a-(5(2a-4))=0

We add all the numbers together, and all the variables

2a-3(-3a+7)-(5(2a-4))=0

We multiply parentheses

2a+9a-(5(2a-4))-21=0



We calculate terms in parentheses: -(5(2a-4)), so:

5(2a-4)

We multiply parentheses

10a-20

Back to the equation:

-(10a-20)



We add all the numbers together, and all the variables

11a-(10a-20)-21=0

We get rid of parentheses

11a-10a+20-21=0

We add all the numbers together, and all the variables

a-1=0

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

a=1

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