Question

2x-y=1 and x-y=-1 find the value of x and y​

Answer 1

Step-by-step explanation:

2x-y=1-eq 1

x-y=-1 -eq 2

using elimination method

2x-y=1 × 1

x-y=-1 × 1

2x-y=1

x -y=-1

-. +. +

_______

x=2

_______

putting the value of x in -eq 1 we get

2x-y=1

2×2-y=1

4-1=y

y=3.

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Answer 2

Answer:

x=0

y=1

Step-by-step explanation:

2x-y=1

x-y=-1

y=x+1

by substitution we get

x=0

y=1