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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We multiply parentheses

3a-(5(a-4)-2a)+21=0



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

5(a-4)-2a

We add all the numbers together, and all the variables

-2a+5(a-4)

We multiply parentheses

-2a+5a-20

We add all the numbers together, and all the variables

3a-20

Back to the equation:

-(3a-20)



We get rid of parentheses

3a-3a+20+21=0

We add all the numbers together, and all the variables

41!=0

There is no solution for this equation

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