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3x + y + 4z = 34 (x 1)
4x + 8y + 4z = 64
3x + y + 4z = 34 -
x + 7y = 30 .....(4)
pers 2 & 3 ) 3x + y +4z = 34 (x 1)
2x + 3y + z = 22 (x 4)
3x + y + 4z = 34
8x + 12y + 4z = 88 -
-5x - 11y = -54 .....(5)
pers 4 & 5 ) x + 7y = 30 (x 5)
-5x -11y = -54 (x 1)
5x + 35y = 150
-5x -11y = -54 +
-24y = 96
y = 4
x + 7(4) = 30 --> x = 2
2 + 2(4) + z = 16 --> z = 6
3x + y + 4z = 34 (x 1)
4x + 8y + 4z = 64
3x + y + 4z = 34 -
x + 7y = 30 .....(4)
pers 2 & 3 ) 3x + y +4z = 34 (x 1)
2x + 3y + z = 22 (x 4)
3x + y + 4z = 34
8x + 12y + 4z = 88 -
-5x - 11y = -54 .....(5)
pers 4 & 5 ) x + 7y = 30 (x 5)
-5x -11y = -54 (x 1)
5x + 35y = 150
-5x -11y = -54 +
-24y = 96
y = 4
x + 7(4) = 30 --> x = 2
2 + 2(4) + z = 16 --> z = 6