Question

5(1.7r + 10.65) = 7r
what is r?
PLS CHECK ANSWER

Answer 1

Answer:

-35.5 is 'r'

Step-by-step explanation:

5(1.7r + 10.65) = 7r

1.7r + 10.65 = 7r/5 (bringing 5 to RHS and dividing)

10.65 = (7r/5) - 1.7r/1 (find LHS)

10.65 = 7r/5 - 8.5r/5

10.65 = (-1.5r/5)

10.65*5 = (-1.5r)

53.25 = -1.5r

53.25/-1.5 = r

-35.5 = r