Answer:
-15+3x=-7+5x
-15+7=5x-3x
-8=2x
-8/2=x
-4=x
6x=6*-4
=-24
Step-by-step explanation:
The solution is in the attached file
A) 9
R=7x+17
S=4x-6
Q=180-110=70
Answer: o.8 lb and 1.2 lb