Question

If x + y = 6 and 3x-y = 4, then x-y? .
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Answer 1

Answer:

x - y = 1

Step-by-step explanation:

By elimination method,

         3x + 3y = 18

         3x  -(+)  y  = (-) 4

            4y = 14, y = 14/4 = 7/2

x + 7/2 = 6,  x = 6 - 7/2, 12/2 - 7/2, x = 5/2

x - y = 7/2 - 5/2 = 2/2 => 1

Answer 2

Answer:

Step-by-step explanation: