Question

Solve the equations by Cramer's Rule:
y+z-t=0,
2y+t=5,
2y-z-3t+2=0.
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ANSWER: x=18/11,z=1/11 and t=19/11

Answer 1

Help Please!

Answer 2

Here's the idea:
http://www.purplemath.com/modules/cramers.htm

Answer 3

i know how to do it but it is not coming correct!

Answer 4

The Determinant of matrix of coefficient is coming 11

Answer 5

the Dx is coming 18

Answer 6

but i am doing a mistake in Dy