SOLUTION: How to solve this kind of problem/equation in Linear equation with 4 variables;
w-2x+3y+4z=12
2w+x+4y-2z=8
3w+3x-4y+3z=12
5w-4x+5y-6z=30
Algebra.Com
Question 1004179: How to solve this kind of problem/equation in Linear equation with 4 variables;
w-2x+3y+4z=12
2w+x+4y-2z=8
3w+3x-4y+3z=12
5w-4x+5y-6z=30
Answer by fractalier(6550) (Show Source): You can put this solution on YOUR website!
There are a couple of methods.
One is to eliminate the same one variable from all four equations, boiling it down to three equations and three variables. Then repeat the process and reduce it down to two equations and two unknowns...something you should already know how to solve...
Another method is using matrices and Cramer's Rule, a bit too complicated to show here.
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