Question

to solve the following linear equation by determinant method x + y= 3 ,3x -2y -4 =0

Answer 1

x+y=3

x=3-y

3(3-y)-2y-4=0

9-3y-2y-4=0

9-5y-4=0

5-5y =0

-5y=0-5

-5y=-5

y= 5/5

y= 1

the answer is 1