Question 931668: Manuel is 8 years older than his sister. 3 years ago he was 3 times older than his sister. How old are they now Answer by ewatrrr(24785) (Show Source):
You can put this solution on YOUR website! x sister's age. Manual (x+8)
.......
3 years ago..
(x+8) - 3 = 3(x-3)
x + 5 = 3x - 9
14 = 2x
7 = x, sister's age . Manual is 15
And checking...3 years ago
12 = 3(4)
