Solve for x:
3 x - 18 = 39
Add 18 to both sides:
3 x + (18 - 18) = 18 + 39
18 - 18 = 0:
3 x = 39 + 18
39 + 18 = 57:
3 x = 57
Divide both sides of 3 x = 57 by 3:
(3 x)/3 = 57/3
3/3 = 1:
x = 57/3
The gcd of 57 and 3 is 3, so 57/3 = (3×19)/(3×1) = 3/3×19 = 19:
Answer: x = 19
Either graph it, and count the slope, or use point-slope, and convert it to slope intercept.
A. n = 500 and C = 10
Substitute values into the equation and solve for k.
10 = k + 2000/500
10 = k + 4
6 = k
b. n = 250 and k = 6
Substitute values into the equation and solve for C.
C = 6 + 2000/250
C = 6 + 8
C = 14
c. C = 8.5 and k = 6
Substitute values into the equation and solve for n.
8.5 = 6 + 2000/n
2.5 = 2000/n
n = 2000/2.5
n = 800
You could do 50 2 seat tables and 5 4 seat tables
You could do you could do 40 2 seat tables and 10 4 seat tables