Question

2x-3z=0,3x+4y=3,X+3y=-4

Answer 1

Answer:

Step-by-step explanation:

1. 3x+4y=3, 3x+12y=12

2.Minus the equations out (3x+12y=12)-(3x+4y=3)

3.8y=9

4.y=1 1/9

5. 3x+ 4*1 1/9= 3

6.3x+4 4/9=3

7.3x=-1 4/9

8.x=1.4444...

9. 2*1.44...-3z=0

10.2.88...-3z=0

11.-3z=2.88...

12.-z=26/27

∴z=26/27

y=1 1/9

x=1 4/9