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OpenStudy (anonymous):
Please explain how to do the cramer's rule with two linear equations!
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OpenStudy (anonymous):
the equation is 3x-2y=7 2x+7y=38
OpenStudy (ranga):
Sorry, my browser crashed and I lost all that I typed. Let me try again.
OpenStudy (anonymous):
Lol aww sorry
OpenStudy (ranga):
3x-2y=7 2x+7y=38 First find the determinant D of the coefficient matrix. |3 -2| |2 7| Find D Then replace the x column with the constants and find determinant DX. |7 -2| |38 7| Find DX Then replace the y column with the constants and find determinant DY. |3 7| |2 38| Find DY The solution is x = DX/D and y = DY/D
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