Could someone help me with this problem? Thanks! 6x+7y=13 x-y=0 x+y=12 (Answer: x=1, y=1) Solve using matrix operations to get the coefficient matrix into reduced form. Write down the answer.
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Originally Posted by mhitch03 Could someone help me with this problem? Thanks! 6x+7y=13 x-y=0 x+y=12 (Answer: x=1, y=1) Solve using matrix operations to get the coefficient matrix into reduced form. Write down the answer. The system is clearly incongruent (i.e., it has no solution) since by , but this doesn't solve . It's trivial to check that doesn't solve neither the first nor the third equation. Tonio
I'm sorry, that is a typo... the last equation is x+y=2
Originally Posted by mhitch03 I'm sorry, that is a typo... the last equation is x+y=2 Then you only need the second and third equation to get the solution at once, and using matrices: From the second row, , and from the first one Tonio
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