Answer:
8
Explanation:
5x= number of boys
7x= number of girls
5x + 7x = 48 which means 12x = 48 and from here, x equals 4
now plug them in 5(4)=20 and 7(4) = 28
then we just subtract: 28-20=8
This means there are 8 more girls than boys in the play.
Hope this helps!