5x(x-3)=55怎样解并验算

来源:学生作业帮助网 编辑:六六作业网 时间:2024/05/15 21:30:39
5x(x-3)=55怎样解并验算5x(x-3)=55怎样解并验算5x(x-3)=55怎样解并验算5X-15=555X-15+15=55+155X=705X÷5=70÷5x=14

5x(x-3)=55怎样解并验算
5x(x-3)=55怎样解并验算

5x(x-3)=55怎样解并验算
5X-15=55
5X-15+15=55+15
5X=70
5X÷5=70÷5
x=14