Question

x-y=1;5x+y=23 then (x,y)

Answer 1

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Answer 2

Step-by-step explanation:

x-y=1------1

5x+y=23----2

subtract Ewuation 2-1

5x+y=23

x-y=1

4x=22

x=22/4

x=11/2

substitute x value in eq1

11/2-y=1

-y=1-11/2

-y=-10/2

y=5

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