How do you solve #abs(2x-4)=0#?

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Answer 1 · 2018-05-20T21:29:59

#x = 2#

#abs(2x-4)=0#

#2x-4=+-0#

but since #+-0=0# we only need solve:

#2x-4=0#

#2x = 4#

#x = 2#

had the equation been equal to something other than zero we would have to solve both the positive and the negative result.