Algebraic transformation of equations
159010
Solve sum with indices
119407
Solution of Vector equation
51209
A linear transformation satisfying $P^2 = P$
88013
injective linear transformation basis.
77587
Cross product: matrix transformation identity
64662
Classification of a linear system of equations with a parameter
63211
Replacements/Substitutions in Mathematica
114011
Algebra - Solving for three unknowns.
2762
Mapping of zero vector under a linear transformation
81895
A generalisation of the fundamental theorem of algebra
71203
Proving that two systems of linear equations are equivalent if they have the same solutions
40426
Polynomial degree 3 Equation
33362
Solving a linear equation in Mathematica
108885
Systems of equations with a single number
52843
framed equations
48961
system of matrix equations
83363
Finding the real root of a cubic algebraically