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nguyenhoangquynhchi02
2 năm trước
m, (2x-1)/5- (x-2)/3=(x+7)/15 n,1/4*x+3=3-1/28*(x+1)-1/3*(x+2) p,(x+3)-(2x+1)/6=(x/6)-x q,(2+x)/5-0.5x=(1-2x)/4+0.25 r,(3x-11)/11-x/3=(3x-5)/7-(5x-3)/9 s,(9x-0.7)/4-(5x-1.5)/7=(7x-1.1)/6-5*(0.4-2x)/6 lm hôn mk 6 phần này nhé thăn kiu
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