Use Cramer's rule to solve

x1 + x2 - x3 = 1

x1 + x2 + x3 = 2

x1 - x2 = 3

To skip to the end..

Unique solutions:

x1 = 9/4

x2 = -3/4

x3 = 1/2

Are these answers right?

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- Oct 22nd 2011, 04:06 AMkmjtDid I get the right answer? (Cramer's rule)
Use Cramer's rule to solve

x1 + x2 - x3 = 1

x1 + x2 + x3 = 2

x1 - x2 = 3

To skip to the end..

Unique solutions:

x1 = 9/4

x2 = -3/4

x3 = 1/2

Are these answers right? - Oct 22nd 2011, 04:42 AManonimnystefyRe: Did I get the right answer? (Cramer's rule)
yes,those are right,but next time try substituting the values of x1,x2,x3 (or any other variables) into the first equations to check if the solution you got is correct.