A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 4 years ago
solve for x.
anonymous
 4 years ago
solve for x.

This Question is Closed

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0dw:1336187220333:dw

Australopithecus
 4 years ago
Best ResponseYou've already chosen the best response.1or you could just go (x3)(x7) = (x5)(x+2) + (x5)

maheshmeghwal9
 4 years ago
Best ResponseYou've already chosen the best response.0dw:1336187350332:dw

Australopithecus
 4 years ago
Best ResponseYou've already chosen the best response.1now expand and simplify

maheshmeghwal9
 4 years ago
Best ResponseYou've already chosen the best response.0Now Simplify & solve. Can you do it now?

UnkleRhaukus
 4 years ago
Best ResponseYou've already chosen the best response.0\[\frac{x3}{x5}=\frac{x+2}{x7}+1\] \[\frac{x3}{x5}\frac{x+2}{x7}1=0\] \[=\frac{(x7)(x3)}{(x7)(x5)}\frac{(x5)(x+2)}{(x5)(x7)}\frac{(x5)(x7)}{(x5)(x7)}\] \[=\frac{(x7)(x3)(x5)(x+2)(x5)(x7)}{(x7)(x5)}\]

Australopithecus
 4 years ago
Best ResponseYou've already chosen the best response.1What are you having problems with exactly? do you know how to simplify equations at all?

Australopithecus
 4 years ago
Best ResponseYou've already chosen the best response.1(x3)(x7) = (x5)(x+2) + (x5) = x^(2)  10x + 21 = x^(2)  3x  10 = Im sure you can solve it from here but if you dont know how I got (x3)(x7) = (x5)(x+2) + (x5) from your original problem then say so

Australopithecus
 4 years ago
Best ResponseYou've already chosen the best response.1I have no idea what the other people are doing in this problem :l

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0have u understood how to solve this problem???

Australopithecus
 4 years ago
Best ResponseYou've already chosen the best response.1x^(2)  10x + 21 = x^(2)  3x  10 = 10x + 3x = 10  21 = 7x = 31 x = 31/7 = x = 31/7

Australopithecus
 4 years ago
Best ResponseYou've already chosen the best response.1that is your answer the rest of the people who attempted this problem need a refresher on algebra and solving equations or they just did things the long way

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0okay thanks so much lol..

Australopithecus
 4 years ago
Best ResponseYou've already chosen the best response.1do you have any idea how I solved this? If you want me to show you how I can.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0yes please... im not the sharpest knife in the drawer when it comes to mathematics!

Australopithecus
 4 years ago
Best ResponseYou've already chosen the best response.1well first you always want to bring all x terms into the numerator so to do this I multiplied both sides of the equation by (x5) and (x7) so (x3)(x5)(x7)/(x5) = (1 + (x+2)/(x7)) * (x5)(x7) = (x3)(x7)(1) = (x5)(x7) + (x5)(x7)(x+2)/(x7) = (x3)(x7) = (x5)(x7) + (x5)(x+2)(1) = (x5)(x7) + (x5)(x7)(x+2) = (x5)(x7) + (x5)(x+2) = Now expand everything Looks like I made a mistake :S

Australopithecus
 4 years ago
Best ResponseYou've already chosen the best response.1in my previous answer

Australopithecus
 4 years ago
Best ResponseYou've already chosen the best response.1ugh my brain it is dead. (x3)(x5)(x7)/(x5) = (1 + (x+2)/(x7)) * (x5)(x7) = (x3)(x7)(1) = (x5)(x7) + (x5)(x7)(x+2)/(x7) = (x3)(x7) = (x5)(x7) + (x5)(x+2)(1) = (x3)(x7) = (x5)(x7) + (x5)(x+2) Now expand and simplify to get the answer

Australopithecus
 4 years ago
Best ResponseYou've already chosen the best response.1collect all x terms on one side of the equation and move all plain numbers on the other side of the equation

Australopithecus
 4 years ago
Best ResponseYou've already chosen the best response.1this problem is quadratic so yeah there are two solutions https://www.wolframalpha.com/input/?i=%28x3%29%28x7%29+%3D+%28x5%29%28x7%29+%2B+%28x5%29%28x%2B2%29

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0alright thanks a bunch!
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.