Answer:
r=1
Step-by-step explanation:
3(2x−2)−r+3x=2(7x+1)−5x−9
Step 1: Add -9x to both sides.
−r+9x−6+−9x=9x−7+−9x
−r−6=−7
Step 2: Add 6 to both sides.
−r−6+6=−7+6
−r=−1
Step 3: Divide both sides by -1.
−r
−1
=
