Question 848945
1)a) for you (x) and your brother (x+2)
x + (x+2) = 150
1)a) for you (y+24)and your son (y)
y + (y+24) = 150

2a)
x + (x+2) = 150
2x=148
x=74 x+2=76

y + (y+24) = 150
2y=126
y=63
y+24=87
2b)
28-4=24
3) 28+x=3*(4+x)
In x years you will be 3 times your son's age 
We have to add x to both ages

4)28+x=12+3x
26=2x
13=x
28+13=3*(4+13)
41=3*(17)
when you are 41 you will be three times older than your son who will be 17
very reasonable. Algebra is like magic.