Answer:
23x+10y
Step-by-step explanation:
add all x variables and all y variables together
Answer:the answer is Y= -4/3x - 5/2
Step-by-step explanation:
8.4 * 10^1 is what I think the answer is
Answer:

Step-by-step explanation:
Invert and multiply the way you would any fraction division problem. Then cancel common factors from numerator and denominator.

Answer:
i don´t understand
Step-by-step explanation:
i don´t understand