How do you solve #|- 10x - 5| = 0#?

1 Answer
smendyka
Mar 17, 2018

See a solution process below:

Explanation:

The absolute value function takes any negative or positive term and transforms it to its positive form. Therefore, we must solve the term within the absolute value function for both its negative and positive equivalent. However, because #-0# equals #0# we can just solve the term within the absolute value function once for #0#:

#-10x - 5 = 0#

#-10x - 5 + color(red)(5) = 0 + color(red)(5)#

#-10x - 0 = 5#

#-10x = 5#

#(-10x)/color(red)(-10) = 5/color(red)(-10)#

#(color(red)(cancel(color(black)(-10)))x)/cancel(color(red)(-10)) = -1/2#

#x = -1/2#

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