Question

Justin is 10 yeas less than half his father's age.If Justin is 12 years old,how old is his father?

Answer 1

Justin is 10 years less than father

you know Justin's age so you add 10 years to it to get his dads age

12+10= 22

Answer 2

lets say justin's age is 'j' and his father's age is 'f'
j = f / 2 - 10
12 = f / 2 - 10
f = j + 10 x 2
f = 12 + 10 = 22 x 2 = 44
Hope this helps :)