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OpenStudy (liv1234):
Can someone please help me?
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OpenStudy (liv1234):
OpenStudy (liv1234):
@TheSmartOne
hartnn (hartnn):
lets try elimination method.
Multiply the 1st equation by 3
Add the result with 2nd equation.
can you try that?
OpenStudy (liv1234):
So, -3*3 and 2*3?
OpenStudy (liv1234):
I got (0,12), but I think that's wrong.
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hartnn (hartnn):
What did you get when you multiply the entire equation
-3x -2y = -12
by 3
?
OpenStudy (liv1234):
-9x and 6y
OpenStudy (liv1234):
Oh and -36
hartnn (hartnn):
-9x -6y = -36
right?
now add that with 2nd equation!
OpenStudy (liv1234):
So, -9+9 and 6+6 and then -36+-9?
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hartnn (hartnn):
its -6y , right??
so -6+6
OpenStudy (liv1234):
0 and -9+9 is 0, so that means there would be no solutions right?
hartnn (hartnn):
0 + 0 = -36 - 9
0 = -45
that is NOT true.
so that system does not have any solution!
yes.
OpenStudy (liv1234):
Thank you! And I learned these systems in 9th grade, but forgot how to do them, so also thank you for showing me how to solve them again.(:
hartnn (hartnn):
welcome ^_^
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