SOLUTION: I'm having problems with this. Use Cramer's rule to solve the following system of equations. If D = 0, use another method to solve. 2x/3-5y/2=3/2 -x/4+5y/2=7/2

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Question 576307: I'm having problems with this.
Use Cramer's rule to solve the
following system of equations.
If D = 0, use another method
to solve.

2x/3-5y/2=3/2
-x/4+5y/2=7/2

Answer by solver91311(24713) (Show Source):
You can put this solution on YOUR website!

For the matrix

The determinant is

Given the system

First calculate the determinant of the coefficient matrix:

Then replace the first column with the constant values and calculate

Then replace the second column with the constant values and calculate

Finally, solve for and

For your problem:

I'll let you do the rest of the arithmetic.

John

My calculator said it, I believe it, that settles it