Question

if x+y=6 and 3x-y=2
,then x-y is

Answer 1

Answer:

-2

Step-by-step explanation:

Use elimination method:

x+y=6

3x-y=2

______

4x=8

.: x=2

Substitute in x+y=6

2+y=6

.:y=4

Now,

.: x-y = 2-4

= -2