8a-(5a+80),(5x+7)-(4x+0.18) 化简这两道算式

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8a-(5a+80),(5x+7)-(4x+0.18)化简这两道算式8a-(5a+80),(5x+7)-(4x+0.18)化简这两道算式8a-(5a+80),(5x+7)-(4x+0.18)化简这两道

8a-(5a+80),(5x+7)-(4x+0.18) 化简这两道算式
8a-(5a+80),(5x+7)-(4x+0.18) 化简这两道算式

8a-(5a+80),(5x+7)-(4x+0.18) 化简这两道算式
8a-(5a+80)=8a-5a-80=3a-80
(5x+7)-(4x+0.18) =5x+7-4x-0.18=x+6.82

8a-(5a+80) = 3a+80
(5x+7)-(4x+0.18) = x+6.82