Question

Five years ago I was 5 times older than my son. In 8 years’ time I will be 3 times older than my son. How old am I today?

Answer 1

Let x = Parent's age now  y = son's age now

Then, x-5 = parent's age five years ago

        y-5 = son's age five years ago

     So, x-5 = 5(y-5)

          Simplify to get x - 5y = -20

Parent's age 8 years from now = x+8

Son's age 8 years from now = y+8

    So, x+8 = 3(y+8)

           Simplifying, we have x - 3y = 16

We have the system of equations:  x - 5y = -20

                                                  x - 3y = 16

Subtract the equations to obtain -2y = -36

                                                  y = 18

                                                  x = 70

Parent is 70 years old and the son is 18 years old.  

Answer 2

Answer:

5 ve 8 in katları olmalı

Step-by-step explanation:

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Im so sorry but my english level is a2 I from turkey