[100x+10(x+4)+(x+2)]/[100(x+2)+10(x+4)+x]=7/4求x的值

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[100x+10(x+4)+(x+2)]/[100(x+2)+10(x+4)+x]=7/4求x的值
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[100x+10(x+4)+(x+2)]/[100(x+2)+10(x+4)+x]=7/4求x的值
[100x+10(x+4)+(x+2)]/[100(x+2)+10(x+4)+x]=7/4求x的值

[100x+10(x+4)+(x+2)]/[100(x+2)+10(x+4)+x]=7/4求x的值
55

(111x+42)/(111x+240)=7/4 444x+168=777x+1680 333x=1512 x=168/37