The 20-pound bag for $85 is a better deal.
40/9= $4.44
85/20= $4.25
In order it goes like this
- 4^ x - 1 = 3^ (-x) - 2
- 3 x + 6 = 2^ x + 1
3^ x - 3 = 2 x - 2
so the question is the answer
2x + 2*(2x-5) = 38 is the equation
solving it
2x + 4x - 10 = 38
6x = 48
x = 8
