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3x + 20% x = 16 10% x + 30% = 3.2 how to write these two equations? 3x+20％x=16 10％x+30％=3.2
The first question: 3x + 20% x = 3.2X = 16, then x = 5; the second question: 10% x + 30% = 0.1X + 0.3 = 3.2, item transfer, 0.1X = 2.9, then x = 29~
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