I bet you don't know the answer to this

y=3x
y=x-2

I bet I do

I do bet , I know

I'll raise you.

Should we tell him, or keep it a secret?

I say that we keep it a secret until he says the amount of money that he's willing to bet.

T-T you are right I don't know the answer >_<
Who know please tell me ( give the person who solve it a big hand ) :)

Hi, paul95!

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Thanks!

first equation:

y = 3x

second equation:

y = x-2

substituting first equation into second

3x = x-2

can you solve it from here?