Answers

2016-03-03T15:28:57+08:00
Let x= number of children
y= number of adults

y = x + 1
x + y = 7

x + (x+1) = 7
x + x + 1 = 7
2x + 1 = 7
2x = 7 - 1
2x = 6
x = 6/2
x = 3

y = x + 1
y = 3 + 1
y = 4

Therefore, the number of children is 3 and the adults are 4.
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