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How do you solve equations with matrices?

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5x-6y=-1. Ik the answer is obvious. But how do you solve it? Please show step by step. Remember, matrices!!!!! Thank you so much to all that answer!
asked Feb 9, 2013 in ALGEBRA 2 by mathgirl Apprentice

1 Answer

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Recall: Cramer's rule

Consider the linear system

ax + by = e

cx + dy = f

which in matrix format is image and assume image

Then, x and y can be found with Cramer's rule as image  andimage


Solve the equation using Cramer's rule

2x + 7y = 9

5x - 6y = -1

Solve system of equation using the Cramer's rule



Solutions of the system is (1, 1)

answered Feb 13, 2013 by britally Apprentice

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