Answer:
9/5 or 1.8
Explanation:
4r - 5 = 7 - 3r +3(2 - r)
Distribute 3 on the right side.
4r - 5 = 7 - 3r + 6 - 3r
Combine like terms on the right side.
4r - 5 = -6r + 13
Add 6r to both sides. Add 5 to both sides.
10r = 18
Divide both sides by 10.
r = 18/10
r = 9/5 = 1.8