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(5/6一3/4)÷17/16x51/8 4.8×38.7十0.3x480℅
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(1)9x-3x=7.2 (2)17.5÷x=1.4 (3)x×10.5=0.63 (4)(x+5.8)×0.8=19.
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解方程.①3x-0.45×4=2.7 ②5.8x-4.6x=0.96 ③8.4÷(9-x)=3 ④3x÷1.2=8.
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解方程.7x+5.3=7.4 1.4×8-2x=6 3x÷5=4.8
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①6x+31=49②7x÷3=8.19③32.8-9x=17.5 ④x-0.36x=16⑤6×7+3x=69⑥6x+2x
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解方程0.3x=6 11x-8x=6.3 x-0.36x=9.6 (x-5)÷2=7.5 4x-4×8=34 8(x-6