Question

If x-y=8 then find value of y for
(1) x=1
(2) x= -2

someone please help this question...​

Answer 1

Answer:

$1 \: . \: 1 - y = 8 \\ - y = 8 - 1 \\ - y = 7 \\ y = - 7$

$2 \: . \: - 2 - y = 8 \\ - y = 8 + 2 \\ - y = 10 \\ y = - 10$

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