2x+y=10..............(1) & x=3...........(2) put it into eq. (1) 6+

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

Question Posted / surabhi singh

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Answer Posted / surabhi singh

2x+y=10..............(1)
&
x=3...........(2)
put it into eq. (1)
6+y=10
y=4
x-y=-1

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