Answer:
r=-9
Step by step explanation:
2(r+5)-4(r-1)=32
Distribute 2 through the parentheses
2r+10-4(r-1)=32
Distribute -4 through the parentheses
2r+10-4r+4=32
Collect like terms
-2r+10+4=32
Add the numbers
-2r+14=32
Move the constant to the right-hand side and change its sign
-2r=32-14
Subtract the numbers
-2r=18
Divide both sides of the equation by -2
r=-9
