1.

X+3y=7;2x+y=1 आलेख पध्दतीने सोडवा​

Answer»

x + 3y = 7 ------------------- ( 1 )

2X + y = 1 ------------------- ( 2 )

MULTIPLY by 2 to eqñ ( 1 )

2x + 6y = 14 -----------------( 3 )

By subtracting ( 2 ) and ( 3 )

2x + y = 1

2x +6y= 14

——————

- - -

——————

-5y = -152

y = 3

put y in eqñ ( 1 )

x + 3y = 7

x + 9 = 7

x = -2



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