How many solutions does this system have?
-3x + 6y = 10
-3x + 6y = -4
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Directrix (directrix):
-3x + 6y = 10-------------------- -3x + 6y = 10
-3x + 6y = -4 ------Multiply by -1 -- 3x - 6y = 4 @trentren
Add the like terms. What do you get?
Directrix (directrix):
Here is a chart of the possible relationships.
OpenStudy (anonymous):
what? but there aren't any like terms in -3x + 6 = 10
Directrix (directrix):
Add these two:
-3x + 6y = 10
3x - 6y = 4
---------------
The x terms are like terms, the y terms are like terms. The 10 and the 4 are like terms.
So just add them and then we can knock out this problem.
OpenStudy (benlindquist):
yea
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Directrix (directrix):
Waiting for you to add.
Directrix (directrix):
Okay
OpenStudy (anonymous):
OK so I add 10 + 4? Thats 14
Directrix (directrix):
Correct.
What is -3x + 3x =
OpenStudy (anonymous):
0
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