Question

X+y=1 ; x-2y=-7 show it graphically the linear equations

Answer 1

x+y=1. --------(1)
x-2y=-7. -------(2)
eq (1) - eq(2)
then
3y= 6, y= 6/3 = 2
put the value of y in eq. (1)
then
x+2= 1
x = -1