Question

Answer the following.
Arjun is 2 years older than Alexa. The sum of their ages is 12

Answer 1

A) x+2=y

a) x+y=12

b) 7

c) 5

Explanation:

Since x represents Alexa and Arjun (y) is 2 years older then we can represent this as

x+2=y

And the sum of their ages are 12 so we just add Alexa (x) and Arjun (y) and set it equal to 12

x+y=12

Now to find one of their ages we use substitution method

We can replace y in the second equation with what y equaled in the first equation like this

x+(x+2)=12

2x+2=12

-2. -2

2x=10

/2 /2

x =5

Now we know that Alexa is 5 so to find Arjun age we just add 2

5+2 =7

Hope this helps and lmk if you have questions