A community for students.
Here's the question you clicked on:
 0 viewing
 one year ago
solve my substitution (medal and fan)
x  y  z = 8
4x + 4y + 5z = 7
2x + 2z = 4
 one year ago
solve my substitution (medal and fan) x  y  z = 8 4x + 4y + 5z = 7 2x + 2z = 4

This Question is Closed

amoodarya
 one year ago
Best ResponseYou've already chosen the best response.1rewrite it x  y  z = 8 4x + 4y + 5z = 7 x + z = 2 from 3rd x=2z so put in 1st and 2nd one

TheForbiddenFollower
 one year ago
Best ResponseYou've already chosen the best response.0im still confused :(

amoodarya
 one year ago
Best ResponseYou've already chosen the best response.1i divided the 3rd equation by 2 so have x+y=4/2=2

amoodarya
 one year ago
Best ResponseYou've already chosen the best response.1let start from the begining x  y  z = 8 4x + 4y + 5z = 7 x + z = 2 from 1st equation xyz=8 x=8+y+z so multiply by 1 x=8yz

amoodarya
 one year ago
Best ResponseYou've already chosen the best response.1put x=8yz in other equations 4x + 4y + 5z = 7 x + z = 2

amoodarya
 one year ago
Best ResponseYou've already chosen the best response.14(8yz) + 4y + 5z = 7 (8yz)+ z = 2

amoodarya
 one year ago
Best ResponseYou've already chosen the best response.14(8yz) + 4y + 5z = 7 (8yz)+ z = 2 >8y=2 >y=6 put that in above

TheForbiddenFollower
 one year ago
Best ResponseYou've already chosen the best response.0yeah! thankss
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.