4+7b=7b-2(2+4b)

Solution for 4+7b=7b-2(2+4b) equation:

4+7b=7b-2(2+4b)

We move all terms to the left:

4+7b-(7b-2(2+4b))=0

We add all the numbers together, and all the variables

7b-(7b-2(4b+2))+4=0


We calculate terms in parentheses: -(7b-2(4b+2)), so:

7b-2(4b+2)

We multiply parentheses

7b-8b-4

We add all the numbers together, and all the variables

-1b-4

Back to the equation:

-(-1b-4)


We get rid of parentheses

7b+1b+4+4=0

We add all the numbers together, and all the variables

8b+8=0

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

8b=-8

b=-8/8

b=-1