let Richards present age be x
x = 3(x+3) - 3(x-4)
Solve
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
1 answer
a) 20
b) 21
c) 22
d) 23
1 answer