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What's 3/4n-18=1/4n-4
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What's 3/4n-18=1/4n-4

User Androyal
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(3)/(4)n-18=(1)/(4)n-4\ \ \ \ | multiply\ by\ 4\\\\ 3n-72=n-16\ \ \ | subtract\ n\\\\ 2n-72=-16\ \ \ | add\ 72\\\\ 2n=56\ \ \ | divide\ by\ 2\\\\ n=28
User CHENJIAN
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