Respuesta :
Answer:
r = 4
Step-by-step explanation:
3r+8=2r+12
Subtract 2r from each side
3r-2r+8=2r-2r+12
r+8 = 12
Subtract 8 from each side
r +8-8 = 12-8
r = 4
Answer:
r = 4
Step-by-step explanation:
3r+8=2r+12
Subtract 2r from each side
3r-2r+8=2r-2r+12
r+8 = 12
Subtract 8 from each side
r +8-8 = 12-8
r = 4