Question

8x-4y=1
9x-3y=25
Solve by method of eqution of their coefficients

Answer 1

Answer:

multiply 1st equation by 3 and 2nd equation by 4

Then subtract 1 from 2

(36x-12y=100)-(24x-12y=3)

12x=97

x=97/12

put this value of x in 8x -4y=1

8×(97/12)-4y=1

-4y=1 -(194/3)=-191/3

y=191/12