Question

Solve smultaneous eqn 1/3x-1/4y+1=0;1/5x+1/2y=4/15

Answer 1

1/3x -1/4y +1 = 0 ----------(1)

and 1/5x + 1/2y = 4/15 ------(2)

multiply by 2 in equation (1)

2/3x -1/2y + 2 = 0
now add this equation in (2)

2/3x + 1/5x = -2 +4/15

13/15x = -26/15

x = -1/2
put x = -1/2 in equation (1)

-2/3 -1/4y +1 = 0

1/3 -1/4y =0

1/4y = 1/3

y = 3/4

Answer 2

x=-1/2,y=3/4 detail expresdion