Question 876584
2x + 3y + 4z = 20, 
x + y + 2z = 9,  
3x + 2y + z = 10.
the ordered triple (1, 2, 3)the Solution for this System
*[invoke cramers_rule_3x3 2,3,4,20,1,1,2,9,3,2,1,10]