Related topic: Solution using Gaussian Elimination
X+ Y + Z = Equation 1
X+ Y + Z = Equation 2
X+ Y + Z = Equation 3
Answer, X =
Answer, Y =
Answer, Z =
These are solved using Cramer's Rule; Keep in mind that sometimes Cramer's Rule doesn't work. Therefore always substitute the value of x, y, and z to equation 1, 2, and 3 to check if they are valid answer.
To finish one Product A, the process start from machine 1 for 2 minutes then machine 2 for 1 minutes and finally in machine 3 for 2 minutes. For Product B and Product C the time needed are shown in the table below.
Compute how many product A , product B, and Product C was produced by reading the total runtime of machine 1, machine 2, and machine 3.
Four Linear Equations

Five Linear Equations

Six Linear Equations

Gaussian Elimination

2Linear Equation

4Linear Equation

5 Linear Equation

6 Linear Equation

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Related topic:
So what if I can't remember formula and forget how to use calculator?