Question

Assalamualaikum solve it using the graphical method solve each of the following pairs of substitution method. x-y=-3. x-2y=-1​

Answer 1

Answer:

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

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

from equation 1

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

putting the value of x in equation 2 we get,

3+y-2y=1

3-y=1

y=3-1=2

putting the value in equation 1

x-2=3

x=3+2=5

x=5 , y=2