Question

Jorge tiene 5 veces la edad de su hijo dentro de 15 años, tendrá únicamente el doble de la edad de su hijo ¿cuantos años tendrá su hijo dentro de 15 años ?

Answer 1

Answer:

His son will be 20 within 15 years

Step-by-step explanation:

The question in English is

Jorge is 5 times his son's age, within 15 years, he will only be twice his son's age. How many years will his son be within 15 years?

Let

x ----> Jorge's age now

y ----> His son's age now

we know that

$x=5y$ -----> equation A

$(x+15)=2(y+15)$ -----> equation B

Solve the system by substitution

Substitute equation A in equation B

$(5y+15)=2(y+15)$

Solve for y

$(5y+15)=2y+30$

$5y-2y=30-15$

$3y=15$

$y=5$

Find the value of x

$x=5y$ ----> $x=5(5)=25$

so

Jorge's age now is 25 years

His son's age now is 5 years

therefore

His son will be 20 within 15 years