Tìm x

(28 3/7 - 27 5/9)(2^26+5.4^12)

tìm x :\(\frac{\left(28\frac{3}{7}-27\frac{5}{9}\right).\left(2^{26}+5.4^{12}\right)}{8^{8.}\left(x-4\right)}\)

câu trả lời cho câu hỏi của Huong Le Thị Lan: 1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20+21+22+23+24+25+26+27+28+29+30+31+32.

=(1+32)+(2+31)+(3+30)+(4+29)+(5+28)+(6+27)+(7+26)+(8+25)+(9+24)+(10+23)+(11+22)+(12+21)+(13+20)+(14+19)+(15+18)+(16+17)

=33+33+33+33+33+33+33+33+33+33+33+33+33+33+33+33.    =33.16 (dấu chấm là dấu nhân)=528

1+2+3+4+5+6+7+8+9+10=

11+12+13+14+15+16+17+18+19+20=

1+2+3+4+5+6+7+8+9+10+11+12+13+14 +15+16+17+18+19+20+21+22+23+24+25+26+27+28+29+30-50-53=
bạn5 bạn nào làm nhanh mình sẽ tích cho bạn đó 

-10/3 + 13/10-1/6+7/10

1-20/6 +39/30-4/24+34/50

15/24-6/26+28/48-30/39+10/24

-5/10+12/28-3/27-7/18+20/35

1+2+3+4+5+6+7+8+9+10=

11+12+13+14+15+16+17+18+19+20=

1+2+3+4+5+6+7+8+9+10+11+12+13+14 +15+16+17+18+19+20+21+22+23+24+25+26+27+28+29+30-50-53=bạn5 bạn nào làm nhanh mình sẽ tích cho bạn đó 

Câu trả lời:

a)2/3+1/5.10/7

b)17/18-11/6

c)7/12-27/7.1/18

d)3/10.(-5/6)-1/8

e)(-4/9).3/8+1/8

f)2/7+28/27:(-4/9)

g)(1/2-2/3).4/5

h)9/7.(3/7-1/2)