Answer:
a
Step-by-step explanation:
If you are just simplifying it it would be 6x because it's 5x plus one more x but if you are trying to find x then I have no idea
√9 = 3 and is rational
Its C
3x + 2y - 4z/x for x=5, y=-2, z=10
3x + 2y - 4z/x
3(5) + 2(-2) - 4(10)/(5)
15 - 4 - 40/5
15 - 4 - 8
11 - 8
3
5x+13y=-13
13y=-5x-13
y=-5/13x-1
Y-intercept = -1
Slope = 5/13