In 8 year a boy will be three times as old as he was 4 years ago. What is his present age?
Geeez. Do your own homework!
Set it up in a formula. Use variable X for the age he is now. In 8 years so thats X+8 he will be 3 times as old as he was 4 years ago so that 3 times his current age minus 4. 3(X-4)X+8=3(X-4)X+8=3X-12-X+12-X+1220=2XX=10So he is 10 years old.
I hate word math
you miss typed sumthin is it "in 8 years" or "an 8 yr old" ???????????