Combine the ' 9r ' and the ' -5r ' . Replace them with ' 4r '.
-9r plus 10r can be written as ( -9r + 10r) and the answer is r.
3+10-r+6r = -3+9r+0 13+5r = -3+9r 16 = 4r r = 4
9r-1?
9-4r
Combine the ' 9r ' and the ' -5r ' . Replace them with ' 4r '.
-9r plus 10r can be written as ( -9r + 10r) and the answer is r.
Cant do much with this one.9r-4s / 9r+6s9r-4s / 3(3r+2s)
3+10-r+6r = -3+9r+0 13+5r = -3+9r 16 = 4r r = 4
It is 5n + 9r.
9r-1?
9-4r
-9r = 20 + rsubtract r from both sides-10r = 20divide both sides by -10r = -2
3(g + 6b + 3r)
16r2+9r
9r = 3r + 6 subtract 3r from both sides 6r = 6 divide both sides by 6 r=1 ■
83-9r = 74