54:45=(x+1):(x-1)怎么解每一步都写清!
来源:学生学帮网 编辑:学帮网 时间:2024/07/06 22:36:17
54:45=(x+1):(x-1)怎么解
每一步都写清!
54:45=(x+1):(x-1)
54/45=(x+1)/(x-1)
6/5=(x+1)/(x-1)
6(x-1)=5(x+1)
6x-6=5x+5
6x-5x=5+6
x=11
54:45=(x+1):(x-1)怎么解
每一步都写清!
54:45=(x+1):(x-1)
54/45=(x+1)/(x-1)
6/5=(x+1)/(x-1)
6(x-1)=5(x+1)
6x-6=5x+5
6x-5x=5+6
x=11