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

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



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

We move all terms to the left:

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



Domain of the equation: 7)(4-a-12)!=0

a∈R



We add all the numbers together, and all the variables

3(-1a-8)=0

We multiply parentheses

-3a-24=0

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

-3a=24

a=24/-3

a=-8

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