Answer:

Step-by-step explanation:
Assuming that the beginning equation is 
First, we should find the common denominator of each of fractions. For all of these denominators, 60 is the smallest common denominator

Now, we can multiply each side by 60, which will remove the fractions

Now we can add 12 to each side

Now subtract 20x from each side

And lastly, divide each side by 10

Answer:

Step-by-step explanation:
<u>Exponents Properties</u>
We need to recall the following properties of exponents:


We are given the expression:

We need to express the following expression in terms of n.

It's necessary to modify the expression to use the given equivalence.
Recall
. Thus:

Applying the property:

Substituting the given expression:

Or, equivalently:

The prime factorization of 126 is <span>2 x 3 x 3 x 7.</span>
Answer:
2.8 units
You should get 2√(2) or √(8) which is less than 3 and greater than 2.