Answer:
-2
Step-by-step explanation:
The coefficient is the number in front of the variable.
Answer:

Step-by-step explanation:
(
)
Multiply
by each term in the parentheses.
+ 
Now, all you have to do is simplify.

Step-by-step explanation:
Water is the universal solvent" with a grain of salt (pun intended). Of course it cannot dissolve everything, but it does dissolve more substances than any other liquid, so the term fits pretty well. Water's solvent properties affect all life on Earth, so water is universally important to all of us.
Answer:
So, the step1 is correct.
Step-by-step explanation:
The expression is

So, the step 1 is correct.
I could be wrong but I got 28. I devided 420 by 15