Two families go to a zoo.
1 answer:
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Answer:
x = 1 and x = -7
Step-by-step explanation:
Given that,
...(1)
and
y = 7 -x ....(2)
Put the value of y from equation (2) in (1)
So,
x = 1 and x = -7
Hence, the solution of the given equations is x = 1 and x = -7