Question

X+y=4 x-y=4 solve by elimination method

Answer 1

Answer:

x+y/x-y=4/4=0

Step-by-step explanation:

so answer is 0

Answer 2

Answer:

given equations,

x + y = 4 ...(i)

x - y = 4 ...(ii)

Now , adding eq (i) and (ii) ,

x + y + x - y = 4 + 4

2x = 8

x = 4

now putting x = 4 in eq (i),

4 + y = 4

y = 0