Jai has 35 pieces of fruit. They are all apples and pears. He has 15 more apples than pears. How many pears does he have?

number of pears --- x

number of apples --- x+15

solve for x:

x + x+15 = 35

35-15=20

To solve this problem, we can set up a system of equations. Let's assume that Jai has x number of pears. Since he has 15 more apples than pears, the number of apples he has is x + 15.

We know that the total number of fruit Jai has is 35. So we can write the equation:

x + (x + 15) = 35

Simplifying this equation, we get:

2x + 15 = 35

Subtracting 15 from both sides, we have:

2x = 20

Dividing both sides by 2, we find:

x = 10

Therefore, Jai has 10 pears.