Answer:
r=4
Step-by-step explanation:
Answer: r= -4
Step-by-step explanation: 5(r-(-2)) = -10 (get rid of parentheses)
5(r+2) = -10 (divide both sides by 5
r+2 = -2 (subtract 2 from both sides)
r = -4
5 1 3
2 16 0
2 1 9
64 books
15 seventh graders
1/5 of 75 is 15
b+3=9+3
a+5=12
a+5=b+3
12-3=9
