A community for students.
Here's the question you clicked on:
← 55 members online
 0 viewing
anonymous
 4 years ago
solve by substitution*
7x  y = 6
x  2y = 12
anonymous
 4 years ago
solve by substitution* 7x  y = 6 x  2y = 12

This Question is Closed

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0This one is easy. 7xy=6 x2y=12 We take value of x in terms of y from the second equation: x=2y12 And substitute it in the first equation: 7(2y12)  y =6 14y + 84  y=6 15y +84=6 84+6=15y 90=15y 90/15=y 6=y.......................First Answer. Substitute in equation 2: x2(6)=12 x12=12 So, x=0. There's our answer: x=0, y=6.
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.