Answer:
1. r=5 2. x=2 3. x=-3 4. y=11 5. x=-11
Step-by-step explanation:
1. 7r-7=2r+18
combine
5r=25r
divide
r=5
5. 3(x-4)=5(x+2)
multiply
3x-12=5x+10
-2x=22
x=-11
10 oranges
you could explain how to get the answer and add detailed words to make it more like english form
ok so first you would find the area and perimeter and state how you got your answer