Tìm x 1.x - 1/4 =2/3 2.x - 1/2 = âm2/3 3.x - âm1/2=3/4 4.x - 2/3= âm7/6 5.x trừ 1/2 = trừ 3/4 6.x - âm3/4=1/2 7.x âm 3/10 = 1/5 8.x - âm5/6= âm1/2 9.x 3/7= 5/14 10.x- 5/7 = 1/9 11.x - 1/15 =1/10 12.x - âm2/5 = âm 7/15 13.5/2 - x = âm3/4 14. 7/4 - x = -7/8

Tìm x 1.x - 1/4 =2/3 2.x - 1/2 = âm2/3 3.x - âm1/2=3/4 4.x - 2/3= âm7/6 5.x trừ 1/2 = trừ 3/4 6.x - âm3/4=1/2 7.x âm 3/10 = 1/5 8.x - âm5/6= âm1/2 9.x 3/7= 5/14 10.x- 5/7 = 1/9 11.x - 1/15 =1/10 12.x - âm2/5 = âm 7/15 13.5/2 - x = âm3/4 14. 7/4 - x = -7/8
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