3r4, -3r4
-9r plus 10r can be written as ( -9r + 10r) and the answer is r.
16r2+9r
83-9r = 74
Cant do much with this one.9r-4s / 9r+6s9r-4s / 3(3r+2s)
As soil particle size increases so does permeability. I am doing Earth Science in 8th grade and 9R in 8th grade
As soil particle size increases so does permeability. I am doing Earth Science in 8th grade and 9R in 8th grade
Combine the ' 9r ' and the ' -5r ' . Replace them with ' 4r '.
-9r
(9r - 8)(9r + 8)
You have to combine equal terms. -5r-9s+9r+3s-6 = -5r+9r-9s+3s-6 = 4r-6s-6
It is 5n + 9r.
3+10-r+6r = -3+9r+0 13+5r = -3+9r 16 = 4r r = 4