Question

The solution of x+y=3 and 2x-y=0 is:​

Answer 1

Answer:

By elimination method

Step-by-step explanation:

x+y=3 )×2

2x+2y=6 (equ.1)

2x-y=0

By changing signs

-+=-

y=6 (put this value in equ.1)

2x+2×(6)=6

2x+12=6

2x=6-12

2x=(-6)

x=(-3)

RECHECKING = PUTTING BOTH VALUES IN EQUATION 1

2×(-3)+2×6=6

-6+12=6

6=6