Answer:
A. 
Step-by-step explanation:
For this problem, we have to combine like terms.
Let's look at the equation:

,
,
do not have any other like terms, so we keep all in the final answer.
and
are like terms, so we combine them. 
14 and 6 are like terms, so we combine them. 14+6 = 20
Let's put everything into the final equation:

So, the final answer is A. 
Hope this helps! If you have any questions about my work, leave them in the comments below!
True the whole statement is true
Answer:
First of all, before writing the y-intercept you need to make sure that the equation is in slope intercept form.
x + 3y = 14
3y = 14 - x
y = 14/3 -x/3
y= -x/3 + 14/3
14/3 is the y-intercept
Answer:
B
Step-by-step explanation: