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Mathematics 7 Online
OpenStudy (anonymous):

Solve: |x| = 5 A. {5} B. {-5} C. {-5, 5} D. {-1, 5}

hartnn (hartnn):

this is simpler than your previous one, remember |a| = b gives a=b or a = -b

hartnn (hartnn):

thats simply because |...| can never be negative, like |5| remains 5 |-5| becomes 5

OpenStudy (anonymous):

c?

hartnn (hartnn):

sure its c good! :)

OpenStudy (anonymous):

wow thanks again

hartnn (hartnn):

welcome ^_^

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