Suppose J, K, L, M, N are points on the same line.
MK = MN + (-KN) = MN - KN = 9x - 11 - x - 3 = 8x - 14
Since LK = MK and LK = 7x - 10, then
7x - 10 = 8x - 14
8x - 7x = -10 + 14
x = 4
LJ = MK + KJ
MK = LK = 7x - 10 = 7(4) - 10 = 28 - 10 = 18
LJ = 18 + 28 = 46
(2*40%+x*10<span>0%)/(2+x) = 70%; calculate x !</span>
To solve this, set up a proportion and solve.
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$2 per ride.
Ok so you can take this as a substitution problem.
x=-2y-13
then substitute
12(-2y-13)+5y=-4
--24y-13×12+5y=-4
sorry i gotta go