60(x+3)=60×5+70(x-5-2)计算,

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60(x+3)=60×5+70(x-5-2)计算,60(x+3)=60×5+70(x-5-2)计算,60(x+3)=60×5+70(x-5-2)计算,先拆阔号60x+60*3=60*5+70x-70*

60(x+3)=60×5+70(x-5-2)计算,
60(x+3)=60×5+70(x-5-2)计算,

60(x+3)=60×5+70(x-5-2)计算,
先拆阔号
60x+60*3=60*5+70x-70*5-70*2
移项合并同类项得
60x-70x=-370
x=37