r=2
What is ; -r-8+6r=-13.=]
r=8
10+r = 2r Subtract r from both sides:- r = 10
10 = r + 3 Subtract 3 from each side: 7 = r
13r+10=5r-46 r= r = -7
15 and 24, respectively.
so 26 = 4r so r = 6½
r + 11 = 19 r + 11 - 11 = 19 - 11 r = 8
3+10-r+6r = -3+9r+0 13+5r = -3+9r 16 = 4r r = 4
r + s = 4 and 2r + 3s = 8 multiply the first equation by 2 giving 2r + 2s = 8 subtract this from the second equation giving s = 0 So r = 4 and s = 0.
(3r + 2)(r - 5)
If r = 3.25, 8r + 6 = 8(3.25) + 6 = 32.