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Do you want learn how to work with absolute values?
I just don't get it. >.<
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.
This definition is stating that the absolute value is a POSITIVE number.
Let me show you with your question how to apply this definition.
Ah. I see. Thank you very much for helping me. I appreciate it. Continue, please. :3
See here http://www.wolframalpha.com/input/?i=abs%28x%29
Can you solve the equation $$9x +9 =18$$
Similarly we use the same argument for the opposite of 18 or -18....
With 9x + 9 = 18, the "x" stands for 3, right? :o
does 9(3) + 9 =?= 18
27 + 9 =36 =/=18
Think of it this way:|dw:1361365016230:dw|
So... The answer is 18x?
No, try and solve for x in $$9x + 9 = 18$$
@AriannaA Do you follow what I just did?
I'm really confused now.
Concentrate on ONLY solving the equation. Subtract 9 from both sides, then divide both sides by 9
What you have to do Arianna is get X by itself 9x + 9=18 To get this by itself you have to remove things from around the x. 9x + 9 = 18 What ever you do to the left side of the = sign you have to do to the right let em show you 9x + 9 = 18 - 9 - 9 --------------- 9x + 0= 9 /9 /9 /=divide 1x + 0 = 1 ------------- We read this as x = 1 so the answer is x = 1 now plug 1 into x 9(1) + 9 = 19 9 + 9 = 18 18=18 this is true
9x+9=18 and 9x+9=-18 this is taken from definition of the absolute value.
So 18=18 is the answer? I'm sorry if I'm being difficult.
x = 1 is the answer
you have to solve for x because x is the only thing we do not know here.
Oh. I see. :o
Do you understand how I got this answer?
Do you want me to continue?
@AriannaA Are you still there?