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Last day I learned about matrix equations like this:

AX = C

A–1AX = A–1C

IX = A–1C

X = A–1C

The objective of this is to Find X.

Here they done it by right multiplication of the Inverse matrix (A^-1).

My Questions are:

1) Where can I get more of these exercises and in higher level? (This exercise was fairly simple, but what about something like p^Tx^-1P^-1PX=APX)

Do you have some book that also shows in understandable way how to solve this?

Because when it's get harder I don't know how to approach it.

Do you have any tips? (Or good book)

2) The same question, but for the system of linear equations like this:

X - ky + z = 2 + kz

kx - 4y - 6z = k^2 + 2k - 9

2x + 4y + 8z = kx+2k(y+z-1) + 13 - k^2

Again, How to approach , and maybe some "Rule of thumbs" in general in solving equations.

For example I don't multiply with "-" and all the solution goes wrong…

Thanks a lot :)

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# Solving Matrix equstions of the type: AX = C (FIND The X) - (NOT HW)

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