Posted by cindy on .
Richard's age is equal to 3 times what it will be in 3 years time, minus 3 times what it was 4 years ago. How old is he?
a) 20
b) 21
c) 22
d) 23

general ability 
Reiny,
let Richards present age be x
x = 3(x+3)  3(x4)
Solve