Example 03 - Simultaneous equations

Tags: 
simultaneous equations
three equations, three unknowns

Problem
Find the value of x, y, and z from the given system of equations.
$ x(x + y + z) = -36 $   →   Equation (1)

$ y(x + y + z) = 27 $   →   Equation (2)

$ z(x + y + z) = 90 $   →   Equation (3)
 

Solution

 
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