Answer:
-b - 9
Step-by-step explanation:
First, since the a cancel eachother out we are left with (4-b) + (-6-7)
Second, you want to add the -6 and -7 to get -13, so (4-b) - 13
Finally, add the 4 to the negative 13 to get (-b - 9)
55 divided by 45= 1.222222222222 1650 divided by 1.222222= anserw
Answer: 7x+28=119
x=13
They would be roughly 180 Ibs.