Question

Yoli is 5 years older than Xavier. The sum of their ages is 21. Write two

equations for the information in this description.

Answer 1

Let's say Yoli's age is represented by the variable 'Y' and Xavier's age is represented by the variable 'X'.

According to the description:

"Yoli is 5 years older than Xavier."

This can be represented as:

Y = X + 5

"The sum of their ages is 21."

This can be represented as:

Y + X = 21

So, the two equations for the information in the description are:

Y = X + 5

Y + X = 21

Explanation:

Let's say Yoli's age is represented by the variable 'Y' and Xavier's age is represented by the variable 'X'.

According to the description:

"Yoli is 5 years older than Xavier."

This can be represented as:

Y = X + 5

"The sum of their ages is 21."

This can be represented as:

Y + X = 21

So, the two equations for the information in the description are:

Y = X + 5

Y + X = 21