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r-ruslan [8.4K]
3 years ago
5

Solve this system: 2x+5y+z=3 x-3y+2z=2 -x+2y-3z=-7

Mathematics
1 answer:
12345 [234]3 years ago
4 0

Answer:

x= -3

y= 1

z= 4

Step-by-step explanation:

Please see the attached pictures for the full solution.

*I evaluated the determinants using Sarrus' rule (see last picture):

∆= aei +bfg +cdh -gec -hfa -idb

*The symbol '∆' (delta) is usually used to denote a determinant.

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