Question

Zyndy is twice the age of Vyndel. The sum of their age is twenty-one. Determine their ages.

Pa sagot po pls pasahan na po namin bukas :

Answer 1

Zyndy is 14, Vyndel is 7.

Explanation:

Let Zyndy's age be represented by 'z', and Vyndel's age be represented by 'v'.

Zyndy is twice the age of Vyndel, so z=2v

The sum of their age is twenty-one, so z+v=21

Sub the first equation above into the second to get:

2v+v=21

3v=21

v=7

Knowing v=7, we can say z=2(v)=14.