Question

2(4 - 2r) = -2(r + 5)

Answer 1

2(4 - 2r) = -2(r + 5)

First, divide both sides by -2. / Your problem should look like: $-4 + 2r = r + 5$
Second, regroup your terms. / Your problem should look like: $2r - 4 = r + 5$
Third, add 4 to both sides. / Your problem should look like: $2r = r + 5 + 4$
Fourth, add r + 5 + 4 to get r + 9. / Your problem should look like:$2r = r + 9$
Fifth, subtract r from both sides. / Your problem should look like: $2r - r = 9$
Sixth, subtract 2r - r to get r. / Your problem should look like: $r = 9$

Answer: r = 9

Answer 2

8-4r = -2r-10
2r-4r=-10-8
-2r = -18
r = 9