Answer:
a) 8 b)9 c)1 d) 3
Step-by-step explanation:
15x+10z is equivalent to 5(3x+2z)
If it's just a vertical line, then it could be displayed as: x = 5.
A vertical line is not actually a function, and because of such, the entire line is just the value of the x value, as it will never have enough x value.
If you're talking about the second part of the question where it asks you which facts you included in your answer, you can choose any of them and it will be counted right.
