ayudemenme en esto porfaaa
sistema de ecuaciones lineales con tres incognitas
2x+y-2z=10 5x-y+4z=5 x+2y+z=1
3x+2y+2z=1 2x+3y+5z=2 x+y+2z=4
5x+4y+3z=4 7x-2y+6z=5 2x+y+z=3
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2x+y-2z=10 ....y=10-2x+2z
3x+2y+2z=1
5x+4y+3z=4
3x+2y+2z=1.......3x+2(10-2x+2z)+2z=1.....3x+20-4x+4z+2z=1..-x+6z=-19 5x+4y+3z=4......5x+4(10-2x+2z)+3z=4.....5x+40-8x+8z+3z=4..-3x+11z=-36
-x+6z=-19....-3(-x+6z=-19).........3x-18z=57
-3x+11z=-36..1(-3x+11z=-36)....-3x+11z=-36
-7z=21....z=21/-7....z=-3
entonces x=1 y=2 z=-3
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5x-y+4z=5...-y=5-4z-5x....y=5x+4z-5
2x+3y+5z=2
7x-2y+6z=5
2x+3y+5z=2...2x+3(5x+4z-5)+5z=2...2x+15x+12z-15+5z=2...17x+17z=17
7x-2y+6z=5....7x-2(5x+4z-5)+6z=5...7x-10x-8z+10+6z=5........-3x-2z=-5
17x+17z=17..2(17x+17z=17)...34x+34z=34
-3x-2z=-5.....17(-3x-2z=-5)......-51x-34z=-85
-17x=-51.....x=-51/-17....x=3
x=3 y=2 z=-2
.........................................................................................................
x+2y+z=1...x=1-2y-z
x+y+2z=4
2x+y+z=3
x+y+2z=4....(1-2y-z)+y+2z=4...1-2y-z+y+2z=4...-y+z=3
2x+y+z=3...2(1-2y-z)+y+z=3....2-4y-2z+y+z=3...-3y-z=1
-4y=4....y=4/-4....y=-1
si y=-1.......z=2....x=1
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