8=-9+b/3 i really need do not understand . this is variables on both sides.

this only has a variable on one side

-8 = -9 + b/3

 add 9 to both sides

1 = b/3

multiply by 3 to both sides

3 = b

check:

-8 = -9 + 3/3

-8 = -9 +1

-8 =-8

the answer is 0.3175 hope that you ^w^

also you might actually want to put this picture up if you want people to solve it luckily i remember this question

inch

step-by-step explanation:

yard and mile are too big.