@ParthKohli Hi, could i please get some help with substitution?

Question

anonymous · Answer

5x-y=6
2x+y=8

parthkohli · Answer

Hey, do you have to solve this using substitution?

anonymous · Answer

yes i did but i kind of did something wrong when i graph it i got (2,4) when i did with substitution  i did not get the same.

parthkohli · Answer

How did you do it?

anonymous · Answer

I kind of flip it to make it easier so i did 2(6-5x)+y=8 and solve and check in the end do i really need to everything i did

parthkohli · Answer

Hmm, I believe you've made the wrong substitution.

anonymous · Answer

Could you please help me with it?

parthkohli · Answer

Sure.

So you want to find $x$ from the first equation and place it into the second.$$5x - y = 6$$First, you would take $y$ to the other side.$$5x = y + 6$$Then you would divide both sides by $5$ to get $x$ alone.$$x = \dfrac{y + 6}{5}$$Do you follow?

anonymous · Answer

Yes...

parthkohli · Answer

Can you place this value of $x$ into the second equation now?

anonymous · Answer

I do not know how put it i only know when it is not with division

parthkohli · Answer

Alright, if you want it that way, we're gonna change our ways.

We're gonna find the value of $y$ from the second equation and we're gonna place it into the first.

anonymous · Answer

Ok..

anonymous · Answer

so how do you do it