3(a-20)-8a=4(-a+1)

Solution for 3(a-20)-8a=4(-a+1) equation:

3(a-20)-8a=4(-a+1)

We move all terms to the left:

3(a-20)-8a-(4(-a+1))=0

We add all the numbers together, and all the variables

3(a-20)-8a-(4(-1a+1))=0

We add all the numbers together, and all the variables

-8a+3(a-20)-(4(-1a+1))=0

We multiply parentheses

-8a+3a-(4(-1a+1))-60=0


We calculate terms in parentheses: -(4(-1a+1)), so:

4(-1a+1)

We multiply parentheses

-4a+4

Back to the equation:

-(-4a+4)


We add all the numbers together, and all the variables

-5a-(-4a+4)-60=0

We get rid of parentheses

-5a+4a-4-60=0

We add all the numbers together, and all the variables

-1a-64=0

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

-a=64

a=64/-1

a=-64