It says the sum, which hints that the two numbers will be added
So we can start the equation with 10+(1/3n)
we are then told they add up to 25
So they will equal 25
So the equation is
10+(1/3n)=25
Well, you said 12. Since the exact result is roughly 11.76, and you can't have 76/100ths of a person, it has to be 11.
You can use an app called photomath to solve it
Answer:
2x+20
Step-by-step explanation:
hope this helps!
The sum is addition and twice x is 2 times x and thats 2x and then add 20 to it.
