(21/7)(4a+a)-12=

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Solution for (21/7)(4a+a)-12= equation: 



(21/7)(4a+a)-12=

We move all terms to the left:

(21/7)(4a+a)-12-()=0



Domain of the equation: 7)(4a+a)!=0

a∈R



We add all the numbers together, and all the variables

3(+5a)-12-()=0

We add all the numbers together, and all the variables

3(+5a)=0

We multiply parentheses

15a=0

a=0/15

a=0

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