Thabo is five years oder than army in seven years time army will be three quaters of thabo age .How old is ay now?

Why can't students check what they have typed before posting it?

It is so cumbersome to translate this gibberish into proper English.

present age:
army ---- x
Thabo --- x+5

in 7 years:
army ---- x+7
Thabo ---- x+5 + 7 = x + 12

x+7 = (3/4)(x+12)
x+7 = 3x/4 + 9
x - 3x/4 = 2
1/4 x = 2
x = 8

Don't know who ay is or where he/she comes into play.