6(x+3)=606(x+3)÷6=60÷6x+3=10x+3-3=10-3x=7
6(x+3)=60两边除以6：x+3=10两边减去3：x=7
6(x+3)=60解方程解:6(x+3)=606x+18=606x=60-186x=42x=7
6(x+3)=60x+3=60/6x=10-3x =7
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