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3x-7 < 2x + 2
3x-2x < 7+2
x < 9
x < 9 (Ya KHANNNNNNNNNNNNNNNNN?????)
3x-7 < 2x+2
3x-2x < 2+7
X < 9
Himpunan= {8,7,6,5,4,dan seterusnya}
9 gak usah dibagi karena hasilnya = 9