Respuesta :
Answer:
r = 1
Step-by-step explanation:
Solve for r
by simplifying both sides of the equation, then isolating the variable.
Answer:
r = 1
Step-by-step explanation:
7 - r = 8 - 2r
Add 2r to both sides
7 + r = 8
Subtract 7 from both sides
r = 1