Ask
your own question, for FREE!
Mathematics
6 Online
OpenStudy (anonymous):
solve by the elimination method 4x-9y=6.5 7y-2x=-4.5
Still Need Help?
Join the QuestionCove community and study together with friends!
OpenStudy (anonymous):
4x-9y=6.5 -2x+7y=-4.5 X 2 => 4x- 9y = 6.5 -4x+14y = 9 ---------------- 5y = 15.5 y = 3.1 => 4x-9*3.1=6.5 => 4x-27.9 = 6.5 => 4x = 34.4 => x = 8.6 Ans: x=8.6, y=3.1
OpenStudy (anonymous):
that solution is not correct
OpenStudy (anonymous):
Oh, sign mistake! I'll do it again :)
OpenStudy (anonymous):
4x-9y=6.5 -2x+7y=-4.5 X 2 => 4x- 9y = 6.5 -4x+14y = -9 ---------------- 5y = -2.5 y = -0.5 => 4x-9*-0.5=6.5 => 4x+4.5 = 6.5 => 4x = 2 => x = 0.5 Ans: x=0.5, y=-0.5
OpenStudy (anonymous):
Is that right?
Still Need Help?
Join the QuestionCove community and study together with friends!
OpenStudy (anonymous):
yes thank u.. can u help me with some others??
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
Timmy23:
The miles stretch out like empty track, A heavy weight I cannot pack. You mean the world, you mean the sun, Yet here we are, the hard work doneu2014 Or tryi
EdwinJsHispanic:
Sad how it was so easy to make you say yes. Also sad how I really thought you would say no but you said the one word I'd never thought you'd say.
thereneelg:
Okay....I'm doing a group solo for choir. Auditions are Tuesday (?), Any tips on
Arizona:
my Rolling stone airpods won't connect and I got them about a year ago is there t
Arizona:
can someone check out my essay i'm doing in my senior English class about the McD
IcedShots:
I was wondering, is there anybody on here around my age? Im turning 15 on December 1 ud83dude0a.
thatonenerd:
Use Hvap of water = 40.7 kJ/mol, c of water = 4.184 J/g.u00b0C, and molar mass of HO = 18.
letrasbonitasz:
Typography plays an important role in digital communication. Different font styles can make social media profiles, usernames, messages, and creative designs
Timmy23:
The miles stretch out like empty track, A heavy weight I cannot pack. You mean the world, you mean the sun, Yet here we are, the hard work doneu2014 Or tryi
5 hours ago
3 Replies
0 Medals
EdwinJsHispanic:
Sad how it was so easy to make you say yes. Also sad how I really thought you would say no but you said the one word I'd never thought you'd say.
14 hours ago
1 Reply
0 Medals
thereneelg:
Okay....I'm doing a group solo for choir. Auditions are Tuesday (?), Any tips on
10 hours ago
1 Reply
0 Medals
Arizona:
my Rolling stone airpods won't connect and I got them about a year ago is there t
1 day ago
3 Replies
0 Medals
Arizona:
can someone check out my essay i'm doing in my senior English class about the McD
2 days ago
1 Reply
0 Medals
IcedShots:
I was wondering, is there anybody on here around my age? Im turning 15 on December 1 ud83dude0a.
2 days ago
3 Replies
0 Medals
thatonenerd:
Use Hvap of water = 40.7 kJ/mol, c of water = 4.184 J/g.u00b0C, and molar mass of HO = 18.
3 days ago
5 Replies
0 Medals
letrasbonitasz:
Typography plays an important role in digital communication. Different font styles can make social media profiles, usernames, messages, and creative designs
5 days ago
3 Replies
1 Medal