-7(1-3a)-4=-2+12(-12+a)

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Solution for -7(1-3a)-4=-2+12(-12+a) equation: 



-7(1-3a)-4=-2+12(-12+a)

We move all terms to the left:

-7(1-3a)-4-(-2+12(-12+a))=0

We add all the numbers together, and all the variables

-7(-3a+1)-(-2+12(a-12))-4=0

We multiply parentheses

21a-(-2+12(a-12))-7-4=0



We calculate terms in parentheses: -(-2+12(a-12)), so:

-2+12(a-12)

determiningTheFunctionDomain
12(a-12)-2

We multiply parentheses

12a-144-2

We add all the numbers together, and all the variables

12a-146

Back to the equation:

-(12a-146)



We add all the numbers together, and all the variables

21a-(12a-146)-11=0

We get rid of parentheses

21a-12a+146-11=0

We add all the numbers together, and all the variables

9a+135=0

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

9a=-135

a=-135/9

a=-15

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