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x/3=6/17/12x+1/4x=9/20x/50-3=x/60+2x/3=6/1+9/17/12x+1/4x=9/20x/50-3=x/60+2
题目详情
x/3=6/1 7/12x+1/4x=9/20 x/50-3=x/60+2
x/3=6/1 +9/1 7/12x+1/4x=9/20 x/50-3=x/60+2
x/3=6/1 +9/1 7/12x+1/4x=9/20 x/50-3=x/60+2
▼优质解答
答案和解析
x/3=1/6
x=1/6×3
x=1/2
7/12x+1/4x=9/20
5/6x=9/20
x=27/50
x/50-3=x/60+2
x/50-x/60=5
x/300=5
x=1500
x=1/6×3
x=1/2
7/12x+1/4x=9/20
5/6x=9/20
x=27/50
x/50-3=x/60+2
x/50-x/60=5
x/300=5
x=1500
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