Question

Six times Michelle’s age would equal her fathers age. But in 6 years he will be only three times her age. How old is her father now?

Answer 1

`let \: x \: be \: her \: age \: now \\ let \: y \: be \: her \: fathers \: age \: now`

`6x = y \\3( x + 6) = y + 6`

`6x - y = 0 \\ 3x - y = - 12`

`6x - y = 0 \\ - 6x + 2y = 24`

`y = 24`

Her father's age is 24 years old