Question

x+y-2=0 & 2x-y-2=0 by eliminaton method​

Answer 1

Answer:

x + y = 2. (i)

2x-y=2. (2)

Add->

3x=4,x=4/3

Put x = 4/3 in (1)

4/3+y=2

y=2-4/3 = 2/3. Ans

Answer 2

Answer:

x + y - 2 =0 ... (1)

2x-y - 2 = 0 ... (2)

Now add equation (1) & (2)

x + y - 2 = 0

2x - y - 2 =0

___________

3x - 4 = 0

So, 3x - 4 =0

3x = 4

x = 4/3

Now put the value of x in eq. (1)

Therefore, x + y - 2 = 0

4/3 + y -2 = 0

4 + 3y - 6 = 0

3

-2 + 3y = 0

3y = 2

y = 2/3

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