What are these three faces equal too
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Let the faces express exclamation(e), sadness(s) and crying(c)
e + c = 9. . . Equation 1
c * s = 24. . . Equation 2
s - e = 1. . . . Equation 3
From 3,
s = e + 1
Therefore, From 1,
s + c = 10
s x c = 24
So, s and c will be factors of 24
24 = 1 x 24
= 2 x 12
= 3 x 8
= 4 x 6
Here, 4 and 6 are the only factors which add up to 10, so s is 4 and c is 6
e = 3
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