10+r = 2r Subtract r from both sides:- r = 10
-9
v
r2 + r - 20 = 0(r + 5)(r - 4) = 0r + 5 = 0 or r - 4 = 0r = -5 or r = 4
r = 5k + 5ur - 5u = 5kk = r/5 - u
r + 14 = 39 r = 25
25
r = 25
15 and 24, respectively.
25
r=-29
r=2
r+5r+5=-25
It is an equation and the value of r is 66
r + 11 + 8r = 29
10+r = 2r Subtract r from both sides:- r = 10
-9