Question

by eliminate method ........

Answer 1

put the value of y and you will get the value of x too

Answer 2

Answer:

$5x+7y=50.............(i)$

$7x+5y=56................(ii)$

$=> 35x +49y=350............(iii)$

$=> 35x +25y= 280.............(iv)$

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    0      +24y  =    70

y = 70/24=35/ 12

In (i),

=> 5x + 245/12 = 50

=> 5x = (600 - 245)/12= 355/12

=> x = 71/12

Hope this answer helps you ^_^ !