Olive have some cookies.If she gave 5 cookies each to some girls she would have 14 left.If she gave 9 cookies each to some girls she would be short of 14 cookies.How many girls did Olive give the cookies to?

1
is the number of girls on both cases the same? or different?

Answers

2014-06-04T18:52:09+08:00

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So we represent the number of cookies as C
and the number of girls as x
C-5x=14.........1
C-9x=-14........2

1+2= 2C-14x=0

2C=14x
C=7x

substitute

7x-5x=14
2x=14
x=7

There are 7 girls

2 3 2