- #1

harpazo

- 208

- 16

- Homework Statement
- Set up the correct equation leading to Peter's age now.

- Relevant Equations
- 2x + 5 = 3(x - 5) + 5

John is twice as old as his friend Peter. Peter is 5 years older than Alice. In 5 years, John will be three times as old as Alice. How old is Peter now? Do not solve. Just set up the correct equation.

This one involves more people.

I think a table helps out.

......Age Now...Age In 5 Years

John......2x.....(2x + 5)...

Peter......x......(x + 5)...

Alice......(x - 5).....(x - 5) + 5

Equation:

##2x+5=3(x-5)+5##

Sorry but it did not display in LaTex form. I tried.

This one involves more people.

I think a table helps out.

......Age Now...Age In 5 Years

John......2x.....(2x + 5)...

Peter......x......(x + 5)...

Alice......(x - 5).....(x - 5) + 5

Equation:

##2x+5=3(x-5)+5##

Sorry but it did not display in LaTex form. I tried.

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