Answer:
Three (3) is the correct answer
15. ![\frac{x}{5} - g = a](https://tex.z-dn.net/?f=%5Cfrac%7Bx%7D%7B5%7D%20-%20g%20%3D%20a)
Add "g" on both sides
![\frac{x}{5} = a +g](https://tex.z-dn.net/?f=%5Cfrac%7Bx%7D%7B5%7D%20%20%3D%20a%20%2Bg)
Multiply 5 on both sides to get x by itself
x = 5(a + g)
x = 5a + 5g
18. a = 3n + 1
Subtract 1 on both sides
a - 1 = 3n
Divide 3 on both sides to get n by itself
= n
21. M = T - R
Add "R" on both sides to get "T" by itself
M + R = T
24. 5p + 9c = p
Subtract "5p" on both sides
9c = p - 5p
9c = -4p
Divide 9 on both sides to get "c" by itself
c =
or c = ![\frac{-4}{9} p](https://tex.z-dn.net/?f=%5Cfrac%7B-4%7D%7B9%7D%20p)
27. 4y + 3x = 5
Subtract "4y" on both sides
3x = 5 - 4y
Divide 3 on both sides to get "x" by itself
x = ![\frac{5-4y}{3}](https://tex.z-dn.net/?f=%5Cfrac%7B5-4y%7D%7B3%7D)
x = ![\frac{5}{3} -\frac{4y}{3}](https://tex.z-dn.net/?f=%5Cfrac%7B5%7D%7B3%7D%20-%5Cfrac%7B4y%7D%7B3%7D)
1.) 28-3x-4= 2x+12+x
2.) 24-3x= 3x+12
3.)24-6x=12
4.)-6x=-12
5.)x=2
Answer: 45.24
Step-by-step explanation: