2x+y=10.......(1) x=3......(2) sub x=3 in (1) ie 2*3+y=10 ie y=4;

If 2x y = 10 and x = 3, what is x - y

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Answer Posted / aneesmohamed

2x+y=10.......(1)
x=3......(2)

sub x=3 in (1)
ie 2*3+y=10

ie y=4;
x=3;
x-y=3-4=-1;

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