78=4(1-3b)+2

Solution for 78=4(1-3b)+2 equation:

78=4(1-3b)+2

We move all terms to the left:

78-(4(1-3b)+2)=0

We add all the numbers together, and all the variables

-(4(-3b+1)+2)+78=0


We calculate terms in parentheses: -(4(-3b+1)+2), so:

4(-3b+1)+2

We multiply parentheses

-12b+4+2

We add all the numbers together, and all the variables

-12b+6

Back to the equation:

-(-12b+6)


We get rid of parentheses

12b-6+78=0

We add all the numbers together, and all the variables

12b+72=0

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

12b=-72

b=-72/12

b=-6