化简 6a+13a 6x-28-2.5x+30.5 8a-(5a+8) (5x+7)-(4x+0.18)填空 28.7÷( )=478.3.0.002

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/04 01:47:26
化简6a+13a6x-28-2.5x+30.58a-(5a+8)(5x+7)-(4x+0.18)填空28.7÷()=478.3.0.002化简6a+13a6x-28-2.5x+30.58a-(5a+8

化简 6a+13a 6x-28-2.5x+30.5 8a-(5a+8) (5x+7)-(4x+0.18)填空 28.7÷( )=478.3.0.002
化简 6a+13a 6x-28-2.5x+30.5 8a-(5a+8) (5x+7)-(4x+0.18)
填空 28.7÷( )=478.3.0.002

化简 6a+13a 6x-28-2.5x+30.5 8a-(5a+8) (5x+7)-(4x+0.18)填空 28.7÷( )=478.3.0.002
6a+13a=19a
6x-28-2.5x+30.5=3.5x+2.5
8a-(5a+8)=3a-8
(5x+7)-(4x+0.18)=x+6.82
你可以考虑重新复习合并同类项以及去括号的规则,温故而知新
28.7÷( )=478.3.0.002
(28.7-0.002)/478.3=0.06

546