Question

subtution method solve
x+y-1=0
x- y-3=0​

Answer 1

Answer:

Given,

x+y=1

x-y=3

Now,

x+y=1

x=1-y .........Eq( 1 )

Put the value of from Eq( 1 ) into,

x-y=3

So,

(1-y)-y=3

1-2y=3

-2y=3-1

-2y=2

y=( -1 )

Now, for the value of 'x',

x+y=1

x+(-1)=1

x=1+1

x=2

Hence, solved.

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