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3x-5y+6z=4 x-3y+5z=-5 2x-4y+z=13

1 Answer

2 votes
3x-5y+6z=4
-3x+9y-15z=15

4y-9z=19


-2x+6y-10z=10
2x- 4y+ z= 13

2y-9z=23

4y-9z=19
-2y+9z=-23

2y=-4
y=-2

3x+10+6z=4
x - 6 +5z=-11

3x+6z=-6
x +5z=-5

3x+6z=-6
-3x-15z=33
-9z=27

z=-3

x+6-15=-5
x-9=-5

x=4

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