Ask
your own question, for FREE!
Mathematics
10 Online
OpenStudy (anonymous):
Use substitution to solve the equation. 4x - y = 15 -2x + 3y = 12
Still Need Help?
Join the QuestionCove community and study together with friends!
OpenStudy (anonymous):
y=4x-15 -2x+3(4x-15)=12 -2x+12x-45=12 10x=57 x=57/10 y=39/5
Directrix (directrix):
4x - y = 15 Solve for y: -y = 15 - 4x y = -15 +4x -2x + 3y = 12 -2x + 3(-15 +4x) = 12 -2x -45 +12x = 12 10x = 57 x = 57/10 ** y = -15 +4x y = -15 + 4(57/10) = -15 + 114/5 = -75/5 + 114/5 = 39/5 *** (57/10 , 39/5) Decimals: (5.7, 7.8) *****
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
abby2blessed:
How do you guys feel about second chances? Concerning relationships, both romantic and otherwise.
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
abby2blessed:
How do you guys feel about second chances? Concerning relationships, both romantic and otherwise.
3 days ago
0 Replies
0 Medals
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
4 days ago
4 Replies
3 Medals
Puffer:
General question what came first the chicken or the egg itu2019s a trick question
4 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
5 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
1 hour ago
6 Replies
0 Medals