Ask your own question, for FREE!
Mathematics 14 Online
OpenStudy (anonymous):

1. Solve the system by substitution 2x+y=-11 3x-4y=11 A. (3,5) B. (-5,-3) C. (-3,-5) D. (5,3)

OpenStudy (azureilai):

2x+y=-11 y=-2x-11 3x-4(-2x-11)=11 Now, solve the above equation

OpenStudy (anonymous):

Look, we have : 2x+y=-11 3x-4y=11 ________________________ +4(2x+y=-11) 3x-4y=11 ________________ have : 8x+4y=-44 3x-4y=11 Sum them : 8x+4y+3x-4y -44+11 have : 11x=-33 and x=3 To find y you can get 3 to x in one of the equations and find that :)

OpenStudy (anonymous):

3. What is the solution of the following system? -3x-2y=-12 9x+6y=-9 A. (2, 1) B. no solutions C. (–2, –1) D. infinitely many solutions

OpenStudy (anonymous):

Thanks

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
AsianPanda08: What should i eat for dinner tonight? I can't choose
1 hour ago 51 Replies 2 Medals
Nina001: Trying 2 figure out what is the square root of 8746685
19 minutes ago 30 Replies 2 Medals
SnowyBreaks: Is it bad to lose 3.8 pounds in less than 2 days?
50 minutes ago 43 Replies 0 Medals
kaelynw: tried a lil smt, the arm is off but i like the other stuff
4 minutes ago 15 Replies 2 Medals
laylasnii13: Who wanna write or make a song with me???
5 hours ago 8 Replies 0 Medals
kaelynw: art igg
13 hours ago 13 Replies 2 Medals
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!