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x一0.3x一3.6=0.6的过程

x一0.3x一3.6=0.6 0.7X-3.6=0.6 0.7X-3.6+3.6=0.6+3.6 0.7x=4.2 0.7x/0.7=4.2/0.7 X=6

3.6-0.3x=1.8 0.3x=3.6-1.8 0.3x=1.8 x=1.8÷0.3 x=6

x-0.7x=3.6 0.3x=3.6 x=12

0.3x+0.9=3.6 0.3x=3.6-0.9 0.3x=2.7 x=2.7÷0.3 x=9

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