Answer:
Step-by-step explanation:
add all of them and then see if they right
In this question, you have to isolate <em>x</em>.
First, use the distributive property.

Now that you have distributed, subtract the constants.
Answer:
a
-12 or -48
4a
Step-by-step explanation:
Answer:
d=sqrt(18^2+24^2)=30
Step-by-step explanation:
Answer: -3n+31
Step-by-step explanation:
1. 28-55=3
25-22=3
22-19=3
19-16=3
This means that n = -3 as we are subtracting
2. We then do the opposite, we take the first number and we add 3 instead of taking it away we get 31.
That is how you get your answer
-3n+31