Question

The pair of linear equation 7 x minus 3 y is equals to 4 and 14 x + 4 y is equals to 5 have

Answer 1

Answer:

7*-3y=4....equa.1

14x*4y=5 .....equa.2

now,

by equa.1

-21y=4

y = -4/21.....equa .3

by putting the value of y in equa.2

14x * 4-4/21 =5

14x* 84/21 - 4/21= 5

14x * 80/21=5

14x = 5*21/80

14x = 105 /80

14x = 21/16

X= 21/16*14

X= 21/224... Ans.