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1.8÷0.3%0.2x=2求解方程

6-0.2x=2 6-2=0.2x 4=0.2x x=20

1.8÷0·3-0.2x=2 6-0.2x=2 0.2x=6-2 x=4÷0.2 x=20

1.8÷0.3-0.2x=2 6-0.2x=2 0.2x=6-2 0.2x=4 x=4/0.2 x=20 (请采纳)

(1)4x+2(4x-50)=20 4x+8x-2×50=20 12x=120 X=10 (2)1.8÷0.3-0.2x=2 0.2x=6-2 0.2x=4 x=20

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