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15-09-2018
Mathematics

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Write an absolute value equation that has 4 and -4 as its solutions.

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15-09-2018

[tex]|x|=4\iff x=-4\ \vee\ x=4[/tex]

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[tex]|x|=4\ \ \ \ |\cdot2\\\\2|x|=8\ \ \ \ |-5\\\\2|x|-5=3\\\\|2x|-5=3[/tex]

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