Boys and girls

There are 48 children in the sports club. Boys are ten more than girls. How many girls go to the club?

Correct answer:

d =  19

Step-by-step explanation:


c+d=48
c = 10 + d

c+d = 48
c-d = 10

Row 2 - Row 1 → Row 2
c+d = 48
-2d = -38


d = -38/-2 = 19
c = 48-d = 48-19 = 29

c = 29
d = 19

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