Question

-x+6y-4z=17 / -4x-y-4z=7 / -x+y+5z=-15 solve using substitution

Answer 1

Answer:

1.x = 17 − 6 y + 4 z Is correct

2.$x =- \frac{7}{4} -\frac{y}{4} -z$ Is correct

3.x = 15 + y + 5z Is correct

Step-by-step explanation:

1. Move all terms not containing  x to the right side of the equation. x = 17 − 6 y + 4 z

2.Isolate the variable by dividing each side by factors that don't contain the variable. $x =- \frac{7}{4} -\frac{y}{4} -z$

3.Isolate the variable by dividing each side by factors that don't contain the variable. x = 15 + y + 5z

(Hope this helps can I pls have brainlist (crown)☺️)