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Mathematics 21 Online
OpenStudy (anonymous):

2l3x-1l+2=10

OpenStudy (bahrom7893):

Simplify this up a bit: 2|3x-1| = 10-2 2|3x-1| = 8 |3x-1| = 4

OpenStudy (bahrom7893):

so 3x-1 can either be 4 or -4

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