Seb bought 2 apples and 3 pears.
he spent £1.59 altogether
apples cost 24p each.
how much does one pear cost? ?

2a + 3p = 1.59

a = 0.24

Plug it in our equation:

2(0.24) + 3p = 1.59

Multiply:

0.48 + 3p = 1.59

Subtract 0.48 to both sides:

3p = 1.11

Divide 3 to both sides:

p = 0.37

So one pair costs £0.37