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What equation that has variables on each side and has a solution of -2?
There are an infinite number of such equations.Here's one of them:2x + 6 = -x(Since the solution is only 1 number, theequation can only have 1 variable.)
What is the contradiction?
That's when you say two or more things that cannot both be true, such as, "The one and only solution is 3," and, "The one and only solution is 17."
Homogeneous system with m equations and n unknowns how to prove it has only one solution?
row reduce the matrix in question and see if it has any free variables. if it does then it has many solution's. If not then it only has one unique solution. which is of course the trivial solution (0)
What is the solution to a linear equation?
The solution to a system on linear equations in nunknown variables are ordered n-tuples such that their values satisfy each of the equations in the system. There need not be a solution or there can be more than one solutions.
Why a system of linear equations cannot have exactly two solutions?
A system of linear equations can only have: no solution, one solution, or infinitely many solutions.
