type an ordered pair....x+4y=9, x=3-4y

Question

type an ordered pair....x+4y=9,  x=3-4y

anonymous · Answer

what do u mean by type... do you want to solve for x and y?

anonymous · Answer

yes

anonymous · Answer

1. Get them into y=mx=b form
    1st equation= y=-1/4 x+2.25
     2nd equation= y= 1/4 x -.75
       p.s. it didn't have 2 be y=mx+b, the equations just had to be in           the same style.
2. This might be confusing if you've never done it before, but you can just subtract one equation from the other. The point is to get rid of one variable so you can just concentrate on the other. since the y's are the same, you don't have to worry about doing any fancy multiplication work. Just subtract the second equation from the first. And remember to subtract everything- not just the y.
       0= -1/2 x +3
It's easy to solve from there.

anonymous · Answer

I forgot part two- after you find out what x is, plug it back into one of the original equations and then solve for y. To check you're work, plug your values into the second equation and see if it works out.