Question

Find the values of x in the following equation: |9x + 9| = 18

Answer 1

Do you want learn how to work with absolute values?

Answer 2

I just don't get it. >.<

Answer 3

Let me start with the definition:

absolute value: The positive number of any pair of opposite nonzero real numbers is the absolute value of each number in the pair.

Answer 4

This definition is stating that the absolute value is a POSITIVE number.

Answer 5

Let me show you with your question how to apply this definition.

Answer 6

Ah. I see. Thank you very much for helping me. I appreciate it. Continue, please. :3

Answer 7

See here http://www.wolframalpha.com/input/?i=abs%28x%29

Answer 8

Can you solve the equation $$9x +9 =18$$

Answer 9

Similarly we use the same argument for the opposite of 18 or -18....

Answer 10

With 9x + 9 = 18, the "x" stands for 3, right? :o

Answer 11

does 9(3) + 9 =?= 18

Answer 12

27 + 9
=36 =/=18

Answer 13

Think of it this way: