Which is a solution of the equation

Question

esshotwired · Answer

what is the equation?

anonymous · Answer

2x-y=0

anonymous · Answer

y=-2x

charlotte123 · Answer

Welcome to OS! 
 Now for your problem......2x-y=0 ---> y would be equal to 2x and 2x would be equal to y ^_^

esshotwired · Answer

try to get y alone so subtract 2x from both sides. so then you have -y=-2x then multiply both sides by -1 to cancel out the negative signs. so the answer is y=2x or you can reverse it to be 2x=y

charlotte123 · Answer

Exactly!

anonymous · Answer

(1,1) (2,-4) (1,2) (3,-1)
these are the choices but I don't understand how to get the answer

esshotwired · Answer

oh! so with this you would plug an ordered pair to the equation and solve it. which ever one equals 0 is the correct answer.

for example, plug in A

2x-y=0
2(1)-(1)=0
then solve it
2-1=0
1=0

so 1 does not equal 0 therefore A is NOT correct