Ask
your own question, for FREE!
Mathematics
11 Online
OpenStudy (anonymous):
Solve this system of equations: 2x - y = 7 5x + y = 21 A. (4,1) B. (5,3) C. (3,6) D. (2,-3)
Still Need Help?
Join the QuestionCove community and study together with friends!
hartnn (hartnn):
Add those 2 equations, what do u get ?
OpenStudy (anonymous):
x=3.5 + 0.5y x = 4.2 + -0.2y @hartnn
hartnn (hartnn):
is that a new question ?
OpenStudy (anonymous):
no thats what i got
OpenStudy (anonymous):
i think the answer is A
Still Need Help?
Join the QuestionCove community and study together with friends!
hartnn (hartnn):
2x - y = 7 5x + y = 21 adding them 2x-y + 5x +y = 7+21 notice that y cancels out. can you find x now ?
OpenStudy (anonymous):
x=4 @hartnn
hartnn (hartnn):
yes!
hartnn (hartnn):
2(4) - y = 7 find y :)
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!
Join our real-time social learning platform and learn together with your friends!
Latest Questions
TJH:
love Love, it comes, it goes But what if it stayed stayed in the silence the storm stayed when the world was loud for me it's different; it left when it was
Puffer:
General question what came first the chicken or the egg itu2019s a trick question
Bounty:
the world keeps moving fast and I'm stuck in a time lapse all I need is a minute
Bounty:
can I get so tips on how to start my journey into semi-realism art also on how to
Strawberryluna:
Read my poem. Im not for criticism its a poem I wrote after my breakup: Youu2019ll never understand the way you made me break, I hate that I still love you
Bounty:
first poem in a min- (tittle)? one moment i'm fine I smile till my face burns I laugh till I cant breath Then I cry I wonder where I went wrong I listen to
Twaylor:
3d printing a glider (for 150 pound 5'8 person - prolly should make it for up to
cullenn:
pitter patter sound of rain gently tapping my window tonight. calming, soothing, right? not for me.
TJH:
love Love, it comes, it goes But what if it stayed stayed in the silence the storm stayed when the world was loud for me it's different; it left when it was
5 days ago
4 Replies
3 Medals
Puffer:
General question what came first the chicken or the egg itu2019s a trick question
5 days ago
5 Replies
1 Medal
Bounty:
the world keeps moving fast and I'm stuck in a time lapse all I need is a minute
1 week ago
4 Replies
0 Medals
Bounty:
can I get so tips on how to start my journey into semi-realism art also on how to
2 weeks ago
0 Replies
0 Medals
Strawberryluna:
Read my poem. Im not for criticism its a poem I wrote after my breakup: Youu2019ll never understand the way you made me break, I hate that I still love you
6 days ago
5 Replies
2 Medals
Bounty:
first poem in a min- (tittle)? one moment i'm fine I smile till my face burns I laugh till I cant breath Then I cry I wonder where I went wrong I listen to
3 weeks ago
5 Replies
1 Medal
Twaylor:
3d printing a glider (for 150 pound 5'8 person - prolly should make it for up to
4 hours ago
7 Replies
0 Medals
cullenn:
pitter patter sound of rain gently tapping my window tonight. calming, soothing, right? not for me.
3 weeks ago
2 Replies
0 Medals