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OpenStudy (anonymous):
HELP PLEASE, MEDAL TO BEST ANSWER!!!
What is the value of the y variable in the solution to the following system of equations?
3x + y = 11
-3x + 2y = 1
Choose one answer.
a. 2
b. 4
c. y can be any number as there are infinitely many solutions to the system.
d. There is no y value as there is no solution to the system.
11 years ago
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OpenStudy (anonymous):
@iGreen @AleshGames @AnswerMyQuestions @youngnephew34
11 years ago
Directrix (directrix):
@RedBlade127
3x + y = 11
-3x + 2y = 1
==========
Add the two equations. The x terms will add to zero and you can solve for y.
11 years ago
OpenStudy (anonymous):
Add them?
11 years ago
OpenStudy (igreen):
Yes..3x + -3x = 0
What's y + 2y? @RedBlade127
11 years ago
OpenStudy (anonymous):
Just y
11 years ago
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OpenStudy (igreen):
No.. 'y' is the same thing as 1y.
So what's 1y + 2y? (It's the same thing as 1 + 3 then adding a 'y' at the end of it)
11 years ago
OpenStudy (igreen):
Same thing as 1 + 2*
11 years ago
OpenStudy (anonymous):
3y
11 years ago
OpenStudy (igreen):
Yes, and what's 11 + 1?
11 years ago
OpenStudy (anonymous):
12
11 years ago
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OpenStudy (anonymous):
now what?
11 years ago
OpenStudy (igreen):
That gives us:
3y = 12
Now divide 12 / 3, what do you get?
11 years ago
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