Question

x+y=0,2x-y=9 solve the simultaneous elimination ​

Answer 1

Step-by-step explanation:

jhhhukdnzxjb,yzjjwiiwihwikdnjzk

Answer 2

Answer:

x+y=0--------(1)

2x-y=9-------(2)

Add equation (1)&(2)

x+y=0

+ 2x-y=9

--------------

3x=9

x=9/3

x=3

Subsituite x=3 in equation (1)

x+y=0

3+y=0

y=3

Hope u will helpful ....

Plz mark me as brainlist....