Question

Please help
7r+18=-2(6-6r)

Answer 1

r = 6

Explanation:

Distribute -2 to (6 - 6r):

7r + 18 = -12 + 12r

Subtract 7r from both sides of the equation:

7r + 18 - 7r = -12 + 12r - 7r

18 = -12 + 5r

Add 12 to both sides of the equation to isolate 5r:

18 + 12 = -12 + 5r + 12

30 = 5r

Divide both sides of the equation by 5 to isolate r:

`(30)/(5) = (5r)/(5)`

6 = r

To double check whether the value of r = 6 is correct, plug it into the original equation:

7r + 18 = -2(6 - 6r)

7(6) + 18 = -2[6 - 6(6)]

42 + 18 = -12 + 72

60 = 60