3 years ago

-4(1 -6b) - 5 ( 2b - 6)= 8b - 7b

Mathematics

2 answers:

Citrus2011 [14]3 years ago

5 0

The answer is b=-2 Hope that helps!!

aksik [14]3 years ago

4 0

-4(1-6b)-5(2b-6)=8b-7b

We move all terms to the left:

-4(1-6b)-5(2b-6)-(8b-7b)=0

We add all the numbers together, and all the variables

-4(-6b+1)-5(2b-6)-(+b)=0

We multiply parentheses

24b-10b-(+b)-4+30=0

We get rid of parentheses

24b-10b-b-4+30=0

We add all the numbers together, and all the variables

13b+26=0

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

13b=-26

b=-26/13

b=-2

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