Absolute+Value

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   These bars, l l, mean absolute value. .

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 The absolute value of l 7 l is 7. This is because the distance from zero is seven. =====

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 =====  How about the absolute value of l -9 l? Let’s think. How much is l -9 l away from zero? 9!

 What if it’s - l 9 l? It’s nine away from zero, but there’s a negative sign in front of it, which makes whatever is in the absolute value signs negative! So, - l 9 l = -9!  But, how would you solve an equation with an absolute value sign? It’s simple! Let’s try one. 

 l 5-9 l
==== So, what is 5-9? -4. Right. But, since it’s in the absolute value signs, it’s positive. ==== So, l 5-9 l = 4  What if it’s something like this though? l -9 l + l -5 l  It’s simple. Do the absolute value of nine plus the absolute value of 5. <span style="color: #7030a0; font-family: 'Agency FB','sans-serif'; font-size: 14pt; line-height: 150%; margin: 0in 0in 10pt;"> 9 + 5= 14 <span style="color: #7030a0; display: block; font-family: 'Agency FB','sans-serif'; font-size: 14pt; line-height: 150%; text-align: center;">So, l -9 l + l -5 l = 14

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