Question

1/3·(−3x+4y−5z) help plz

Answer 1

Answer:

To solve this we need to form 2 equations with only 2 variables.

x+4y-5z=-7

2x+y+5z=8

3x+5y=1

15x+10y+15z=35

6x+3y+15z=24

9x+7y=11

Now we need to use these to find x and y

9x+15y=3

9x+7y=11

8y=-8

y=-1

Therefore:

x=2

From this we can find that:

2(2)-1+5z=8

Therefore z=1

The answer is x=2, y=-1, z=1

Answer 2

Answer: -x + 4/3y - 5/3z

Step-by-step explanation:

1/3*(-3x+4y-5z)

-1/3 * 3x + 1/3 * 4y - 1/3 * 5z

-x + 4/3y - 5/3z