11. # of hot dogs= 2s
12. The amount of materials= 4w
13. y= 1.10m + 2
14. t= 0.08d
15. c= 0.25p
16. b= 0.05t + 49
Y =

x + 3
y = x - 4
Since both equations are equal to y, you can set the two values equal to each other and solve for x.

x + 3 = x - 4 Multiply both sides by 2
x + 6 = 2x - 8 Add x to both sides
6 = 3x - 8 Add 8 to both sides
14 = 3x DIvide both sides by 3
4
= x
Now, plug the x value into one of the original equations, I'll plug it into y = x - 4.
y = x - 4 Plug in the x value
y = 4

- 4 Subtract
y =
x = 4
and
y =
Y=.05x +4100
Y=.05(3)+4100
Y=.15+4100
Y=4100.15