Posted by shelby on .
okay i am comepletely stuck on this math prob....:
x + 5y - 10 = 0
x = 2y - 8
i know the answer is
-20/7 , 18/7
but i have no idea how they got it so
The second equation is telling you what x is..since it says " x=2y-8" this tells you that wherever you see an x you can replace it with that equation, so you would get:
so then you would just solve for y to get 18/7. So now you know what y is you can put that answer in either equation and solve for x. for example:
THKS SOOOOOO MUCH!
I get it now
again thank you so much!