pat is 6 years older than his friend garry, age was 7 more than half of parts age,what is there present age.

Sagot :

Let x be Garry's age
     x+6 be Pat's age

[tex]x = 7 + \frac{1}{2} (x+6)[/tex]

[tex]x = 7 + \frac{1}{2} x + 3[/tex]

[tex]x - \frac{1}{2} x = 7+3[/tex]

[tex] \frac{1}{2} x = 10[/tex]

[tex]x = 20[/tex]

Therefore, Garry is 20 years old and Pat is 26 years old (from x+6).