Question

Find the solution of the pair of linear equations by graphical method.
х+у= 7
3х – у = 1​

Answer 1

Answer:

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Answer 2

Answer:

x+y=7 can be written as x=7-y

Put 1st statement into the 2nd one

=>3(7-y)-y=1

=>21-3y-y=1

=>-4y=1-21

=>y=-20/-4

y=5

x=7-y

x=2

Answer=>x=2; y=5