|x-7| > 6 means
x-7 > 6 or x-7 < -6
that is to say that x-7 is "past" 6 on the number line. So to the right it's greater, but to the left it has to be less than. When we simplify
x >13 or x < 1
x-7 > 6 or x-7 < -6
that is to say that x-7 is "past" 6 on the number line. So to the right it's greater, but to the left it has to be less than. When we simplify
x >13 or x < 1
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