Question

William says that 15 years from now, his age will be 3 times his age 5 years ago. If x represents William's present age

Answer 1

`x` = 15 years

Step-by-step explanation:

If
`x` represents his age now,
`x + 15` represents his age in 15 years from now, and
`x - 5` represents his age 5 years ago. Since he says his age 15 years from now is the same as his age 5 years ago multiplied by 3, an equation you can make is:


`x + 15 = 3(x-5)`

Which can be simplified as:


`x +15=3x - 15`

You can then subtract
`x` on both sides to remove the
`x` on the left.


`(x-x)+15=(3x-x) - 15`

`15 = 2x - 15`

And add 15 on both sides to remove -15 on the right.


`15+15= 2x - 15+15`

`30 = 2x`

Lastly, divide 2 on both sides to single
`x`.


`30` ÷
`2 = 2x` ÷
`2`

`15 = x`

To get our final answer, 15 years.

Answer 2

Answer:x+15=3(x-5) his present ae is 15 yearsStep-by-step explanation:x+15=3(x-5)x+15=3x-1515+15=3x-x30=2xx=30/2=15 ye

Step-by-step explanation: