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 2 years ago
Use elimination to solve the system. What is the value of x?
4x + 7y = 14 and 8x + 5y = 8
 2 years ago
Use elimination to solve the system. What is the value of x? 4x + 7y = 14 and 8x + 5y = 8

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jim_thompson5910
 2 years ago
Best ResponseYou've already chosen the best response.1Hint: Multiply everything in the first equation by 2 to go from 4x + 7y = 14 to 8x  14y = 28

jim_thompson5910
 2 years ago
Best ResponseYou've already chosen the best response.1So you now have the two equations 8x  14y = 28 8x + 5y = 8

RyanL.
 2 years ago
Best ResponseYou've already chosen the best response.1That's solving for x first and then plugging it back to get y. I thought that the OP wanted to do it from that one step.

jim_thompson5910
 2 years ago
Best ResponseYou've already chosen the best response.1you can go a number of ways, you can multiply the top equation by 5 and the bottom equation by 7, then add

katie2212
 2 years ago
Best ResponseYou've already chosen the best response.0im just getting more confused

jefferyflow123go
 2 years ago
Best ResponseYou've already chosen the best response.0I believe the answer is 14.

katie2212
 2 years ago
Best ResponseYou've already chosen the best response.0these are the options. 3.5 1.5 8 4

jefferyflow123go
 2 years ago
Best ResponseYou've already chosen the best response.0Oh then i bet the answer is 5

jim_thompson5910
 2 years ago
Best ResponseYou've already chosen the best response.1Do you see how I went from 4x + 7y = 14 to 8x  14y = 28

jim_thompson5910
 2 years ago
Best ResponseYou've already chosen the best response.1please don't give away the (incorrect) answer

jefferyflow123go
 2 years ago
Best ResponseYou've already chosen the best response.0sorry, if you would just give her the right answer, i would be able to go on with my day. As would she

jim_thompson5910
 2 years ago
Best ResponseYou've already chosen the best response.1I'm providing hints and trying to walk her through it (without giving it all away)

jefferyflow123go
 2 years ago
Best ResponseYou've already chosen the best response.0No matter how many hints your provide she doesn't care. she just wants the answer

jim_thompson5910
 2 years ago
Best ResponseYou've already chosen the best response.1well that's not what this site is for, I'm sry

jim_thompson5910
 2 years ago
Best ResponseYou've already chosen the best response.1if you keep this behavior up jefferyflow123go you will be reported (and possibly suspended/banned)

katie2212
 2 years ago
Best ResponseYou've already chosen the best response.0its hard for me too understand..im trying. i learn better in a class room thats why i am having trouble with my online class

jim_thompson5910
 2 years ago
Best ResponseYou've already chosen the best response.1its ok, you don't have to understand everything at once katie2212

katie2212
 2 years ago
Best ResponseYou've already chosen the best response.0but i have to understand if i want to finishe this exam.

jefferyflow123go
 2 years ago
Best ResponseYou've already chosen the best response.0Sorry for hekping. My mom always taught me to hekp and have pride in my work, so trying to be of assistance. I didn;t realize that you can be the only genious here. If you were that smart you'd know that she doesn't understand your hints and just wants the answer.

jim_thompson5910
 2 years ago
Best ResponseYou've already chosen the best response.1that's not helping though, you may think it is...but it's not

jim_thompson5910
 2 years ago
Best ResponseYou've already chosen the best response.1if you want, you can provide the steps so she can learn from them

katie2212
 2 years ago
Best ResponseYou've already chosen the best response.0okay will you guys please stop arguing and just help me!

jim_thompson5910
 2 years ago
Best ResponseYou've already chosen the best response.1ok I'll give steps on this one and hopefully it will be enough to answer similar ones, sound good?

jefferyflow123go
 2 years ago
Best ResponseYou've already chosen the best response.0IS your refrigderator running ? IF SO GO CATCH IT

jefferyflow123go
 2 years ago
Best ResponseYou've already chosen the best response.0My momma once told me, a fast runna' is the best runnna'

katie2212
 2 years ago
Best ResponseYou've already chosen the best response.0jeffery if youre not going to help please get out.

jefferyflow123go
 2 years ago
Best ResponseYou've already chosen the best response.0BUT IM JUST TRYNA HELP YOU. ILL CATCH YOUR FRIDGE FR YOU.

jefferyflow123go
 2 years ago
Best ResponseYou've already chosen the best response.0What did the bison say to his son when he left for college? Bison

jim_thompson5910
 2 years ago
Best ResponseYou've already chosen the best response.14x + 7y = 14 ... Start with the first equation 2(4x + 7y) = 2*(14) ... Multiply both sides by 2 8x  14y = 28 ... Distribute and multiply  So 4x + 7y = 14 is the same as 8x  14y = 28  This means that the system 4x + 7y = 14 8x + 5y = 8 becomes 8x  14y = 28 8x + 5y = 8 Now add the two equations: 8x  14y = 28 8x + 5y = 8  0x  9y = 36 which means that 9y = 36 Solve for y to get 9y = 36 y = 36/(9) y = 4 Now that we know that y = 4, we can use this to find x. Pick on any equation, plug in y = 4 and solve for x 4x + 7y = 14 4x + 7(4) = 14 4x  28 = 14 4x = 14 + 28 4x = 14 x = 14/4 x = 7/2 x = 3.5 So the value of x is x = 3.5

jefferyflow123go
 2 years ago
Best ResponseYou've already chosen the best response.0yanno wizard like Harry Potter

jim_thompson5910
 2 years ago
Best ResponseYou've already chosen the best response.1The idea here is to get the x coefficients equal and opposite. Then you add the equations. Doing so will cancel out the x terms so you can solve for y

jim_thompson5910
 2 years ago
Best ResponseYou've already chosen the best response.1then you use that value of y to find x

jim_thompson5910
 2 years ago
Best ResponseYou've already chosen the best response.1you've been reported jefferyflow123go, have a nice day

jefferyflow123go
 2 years ago
Best ResponseYou've already chosen the best response.0you too good sir(:

jim_thompson5910
 2 years ago
Best ResponseYou've already chosen the best response.1good luck with that one, I don't spam and harass others so your claim will be without merit
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