Question 1019852
Two person: x
Four person: y
x+y = 16 and so: x = 16-y We'll use this value for x next.
2x+4y = 50 substitute for x:
2(16-y)+4y = 50
32-2y+4y = 50
2y = 18
y = 9 There are 9 four-person tables and
16-9 = 7 two-person tables
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Check (always check):
9*4 = 36
7*2 = 14
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Total: 50 We have the correct answer