Question

. Eliminate x by substitution method.
(i) x-y + 1 = 0,3x+y-3​

Answer 1

Answer:

x,y=1,2

Step-by-step explanation:

x-y=-1……1

3x+y=3…2

By adding equations one and two

x-y=-1

3x+y=3

4x=4

x=1

Let's put the value of x in equation one

1-y=-1

-y=-1-1

-y=-2

y=2