Combine the ' 9r ' and the ' -5r ' . Replace them with ' 4r '.
You have to combine equal terms. -5r-9s+9r+3s-6 = -5r+9r-9s+3s-6 = 4r-6s-6
9-4r
3+10-r+6r = -3+9r+0 13+5r = -3+9r 16 = 4r r = 4
The answer is -r
Combine the ' 9r ' and the ' -5r ' . Replace them with ' 4r '.
You have to combine equal terms. -5r-9s+9r+3s-6 = -5r+9r-9s+3s-6 = 4r-6s-6
9-4r
3+10-r+6r = -3+9r+0 13+5r = -3+9r 16 = 4r r = 4
-2r
The answer is -r
-9r plus 10r can be written as ( -9r + 10r) and the answer is r.
quintic
5r + r = 6r
-5r + 8r + 5 = 3r +5
Cant do much with this one.9r-4s / 9r+6s9r-4s / 3(3r+2s)
r+5r+5=-25