X+y=2,y=4X+7; x-y=2,3y+2x=9; x-5y=2,2y=6x+6; 3x+y=3,2y=

T

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I need help with these questions

#2 X+y=2
y=4X+7

#3 x-y=2
3y +2x =9

#4 x-5y=2
2y=6x+6

#5 3x+y=3
2y=6x+6

#6 2x+y=5
3x-2y=4

#7 7x+3y=1
4x+y=3
 
Re: Geometry Question

What have you done so far with #1? Where are you stumped? Since y=4x+7, just plug that into the first equation and solve that for x. Then plug the obtained value of x back into either of the equations and solve for y. If you were given any instructions as to what methods to use, those should have been included in your post.

X+y=2
y=4X+7
 
Re: Geometry Question

Loren said:
What have you done so far with #1? Where are you stumped? Since y=4x+7, just plug that into the first equation and solve that for x. Then plug the obtained value of x back into either of the equations and solve for y. If you were given any instructions as to what methods to use, those should have been included in your post.

X+y=2
y=4X+7
Click to expand...


Hi Loren,

Thanks sooooooooooo much for helping me....the way I wrote the questions is how the teacher gave us the homework assignment...their is no other information on the paper....just what I wrote here....the first question is y=-x
y=2x-6

I know how to do this one but not the others......

Thanks So Much, Taylor
 
Re: Geometry Question

Thanks so much Loren for your help...this is how she has it listed on my homework assignment....the first question was like this....

y=-x
y=2x-6

This is exactly how she wrote this on our assigment....I know how to do number 1 but I am stumped on the rest of them

Thanks soooooooooo much
 
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