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I'm pretty rusty with solving linear equations, my equations are:

a_{i}= b_{ijk}c_{jk}

i = 1,... n

j, k = 1,... m

Would like to know c, given a and b. Need somewhere to start, without having to cover 3 years of notes that I took 5 years ago, thanks if anyone can point me in the right direction!

Comments: I know I could compact j and k into a single dimension and reduce it to a "simple" matrix equation but this process discards valuable information that I need later on. Or at least makes it difficult to retrieve this information, so I'd like to explore a way of solving the equations outright. Thanks.

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# Solving 3D matrix equation

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