126=-6+6(1-7a)

Solution for 126=-6+6(1-7a) equation:

126=-6+6(1-7a)

We move all terms to the left:

126-(-6+6(1-7a))=0

We add all the numbers together, and all the variables

-(-6+6(-7a+1))+126=0


We calculate terms in parentheses: -(-6+6(-7a+1)), so:

-6+6(-7a+1)

determiningTheFunctionDomain
6(-7a+1)-6

We multiply parentheses

-42a+6-6

We add all the numbers together, and all the variables

-42a

Back to the equation:

-(-42a)


We get rid of parentheses

42a+126=0

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

42a=-126

a=-126/42

a=-3