Answer:
the answer is 26
Step-by-step explanation:
you add 7 to -7 and 19. the positive and negative 7 cancels each other out. them you add 19 and 7 which is 26. that means x is 26.
btw watch hameltion its on diesny plus its the best musical ever, just give it a try.
Answer:
80
Step-by-step explanation:
You mean the "interest on"
I=800×.1×1=80
Answer:

Explanation:
In the first example the division results in a radical, not a polynomial.
The remaining examples are not counter-examples (they do result in a polynomial)
Answer:
x=1
y=3
z=-2
Step-by-step explanation:
Use substitution to solve two systems and then the third.