50(x-1/2)=40x用解方程来做答详细

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50(x-1/2)=40x用解方程来做答详细50(x-1/2)=40x用解方程来做答详细50(x-1/2)=40x用解方程来做答详细50x-25=40x10x=25X=2.550(x-1/2)=40x

50(x-1/2)=40x用解方程来做答详细
50(x-1/2)=40x用解方程来做答详细

50(x-1/2)=40x用解方程来做答详细
50x-25=40x
10x=25
X=2.5

50(x-1/2)=40x 50x-25=40x 50x-40x=25 10x=25 x=2.5

50(x-1/2)=40x
50x-50×1/2-40x=0
10x-25=0
10x=25
x=2.5