Question

Another problem that I am disagreeing with the answer key -

I am once again solving for b

-9 = -24/7 + b
I add -24/7 to both sides to get -9 + 24/7 = b
When I make 7 my denominator for both I get -63/7 + 24/7 = b
My final answer is -39/7 = b

The answer book says it's positive 39/7.
Have I done something wrong?

Answer 1

Step 1: Simplify both sides of the equation.

Step 2: Flip the equation.

Step 3: Add 24/7 to both sides.

Final answer is 39/7

Answer 2

I did add 24/7 to both sides, but the -9 on the left side becomes -63/7 which is larger than the 24/7 ---

-63 - 24 is still -39????

Answer 3

Okay so -24/7 + 24/7 = -9 + 24/7

b= -39/7

Answer 4

Yes, I agree but Jackson said it would be positive and the answer book says positive. I just don’t see how???