When does Ax +b = 0 not have a solution?
125999
When does a system of equations have no solution?
123808
How would I solve the following problem involving elementary matrices?
7622
$AB-BA=I$ having no solutions
8902
Can Gaussian elimination find a zero vector when $m < n$?
140252
Matrices - Conditions for $AB+BA=0$
87387
Linear equations given by $Ax = b$ have a solution if and only if $\operatorname{rank}(A|b) = \operatorname{rank}(A)$
110408
Solving for $A$ in $Ax = b$
102707
Why square matrix with zero determinant have non trivial solution
14515
Algebra struggles: 2 problems in 1
80817
Solving equations of the form $ae^x + bx +c =0$
10926
System of Linear Equations - how many solutions?
48860
Why won't Mathematica Solve a set of two equations for one variable?
33944
Describe $\mathbb{R}[x]/(x^{2}+ax+b)$ where $a,b \in \mathbb{R}$
41073
Prove $ax^2+bx+c=0$ has no rational roots if $a,b,c$ are odd
61359
Set of Linear equation has no solution or unique solution or infinite solution?
52706
Can Reduce *really* not solve for x here?
142725
The general solution of $x^a = a^x$ for real $a >0$