Question

linear equations method X+y=4 and x-3y=4​

Answer 1

Step-by-step explanation:

x+y=4 (1)

x-3y=4 (2)

Multiplying (1) by 3

3x+3y=12

Now subtract (2) from (1)

3x+3y=12

-x-3y=-4

2x=8

Therefore x=4

Put this value in (1)

4+y=4

y=0