Question

Solve the following pair of linear equation by substation method 7x-4y=3, x+2y=3

Answer 1

hey mate!!!!

Solution:

7x-4y= 3.....(1)

and x+2y= 3......(2)

now,

x= 3-2y.....(3)

substituting value of x in (1),

7x-4y= 3

7(3-2y)-4y=3

21-14y-4y= 3

21-18y= 3

-18y= 3-21

-18y=-18

y=-18/-18=1

substituting value of y in (3),

x= 3-2y= 3-2(1)=3-2=1

hence,

(x,y)=(1,1)

hope this helps!!☺✌❤