Ask your own question, for FREE!
Mathematics 9 Online
OpenStudy (wolf):

solve for x and y 2x-9y=-23 8x-5y=1

OpenStudy (anonymous):

This looks like a great problem to do elimination in. Take your first equation and multiply it through by a constant which will allow you to vertically combine the two equations so that you are left with one variable. Once you've done that, you can plug in your answer to either of the two original equations to get the second variable's value. It looks like the x coefficients will be easy to cancel out. (Hint: the constant you multiply through is going to be negative.)

OpenStudy (anonymous):

x = 2, y= 3 use elimination method, multiply (1) by 4 and subtract from (2)

OpenStudy (wolf):

multiply by negative 4?

OpenStudy (anonymous):

either multiply by 4 and subtract OR multiply by -4 and add them........

OpenStudy (wolf):

oh ok thanks thats what i was confused about silly me

OpenStudy (bahrom7893):

or just solve the first equation for x in terms of y, and plug it in into the second equation

OpenStudy (anonymous):

it would be more complex........

OpenStudy (wolf):

yea I got it now thanks

OpenStudy (anonymous):

you welcome.........

OpenStudy (bahrom7893):

lol I dunno, im just used to that..I learnt it that way see, gets more confusing for me, but whichever way is comfortable and wolf, u should fan sudhanshu_kmr

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Latest Questions
XShawtyX: Art, Short Writing Assignment: Imagining Landscapes
5 hours ago 2 Replies 0 Medals
XShawtyX: Chemistry, Help ud83dude4fud83cudffe
5 hours ago 13 Replies 1 Medal
kaelynw: tried a lil smt, the arm is off but i like the other stuff
16 hours ago 27 Replies 3 Medals
kaelynw: art igg
14 hours ago 14 Replies 2 Medals
XShawtyX: Art
3 days ago 6 Replies 0 Medals
Nina001: teach me how to draw or just tell me the basics
3 days ago 2 Replies 1 Medal
XShawtyX: We doing another drawing gimme ideas to add to this
3 days ago 9 Replies 1 Medal
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!