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December 26th, 2018, 08:03 AM   #1
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|x+1|+7=3

Why wouldn't you first move the equation into two cases?
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December 26th, 2018, 08:06 AM   #2
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Originally Posted by nonimouse View Post
Why wouldn't you first move the equation into two cases?
Because if you subtract 7 from both sides you see that an absolute value must be negative, which is impossible. There's no point applying a mechanical procedure to solve this since there's no solution.
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