Answer:
D
Step-by-step explanation:
D) 7⅕b
Just grab all of the b numbers and the regular numbers and do their own math
3/5b-2/5b=1/5b
7b+1/5b=7⅕b
-2+-12=-14
-14+14=0
0+7⅕b=7⅕b
Please give brainliest if I helped! :)