dit me chung may ngu vai loen

@cao quang tiến không được nói bậy

(47 - 52). 3 + 27

= -5. 3 + 27

= -15 + 27

= 12

-4(39 - 19) + 30(-5 - 15)

= -4. 20 + 30. (-20)

= -80 - 600

= -680

36. (-9) + 9. (-64)

= -9(36 + 64)

= -9. 100

= -900

\(\dfrac{15}{17}+\dfrac{32}{17}=\dfrac{15+32}{17}=\dfrac{47}{17}\)

47 - 52). 3 + 27

= -5. 3 + 27

= -15 + 27

= 12

?

viết hẳn ra đi đừng viết mở ngoặc rồi đóng ngoặc

-3/4+3/4* (x-1/2)+1/6=-1

=0*(x-1/2)=-7/6

nên ko tìm đc x

\(\left(5.2^2-20\right):\left(5+3^2:6\right)\\ =\left(5.4-20\right):\left(5+9:6\right)\\ =\left(20-20\right):\left(5+\dfrac{3}{2}\right)\\ =1:\dfrac{13}{2}=\dfrac{2}{13}\)

(5*2^2-20):5+3^2/6

=(20-20):5+9/6

=3/2

-3/4+3/4×(x-1/4)

=(3/4+-3/4)×(x-1/4)

=0×(x-1/2)

=X-1/2=0

X=0+1/2

X=0 mong chờ em xin sao ạ 

(24*5-5^2*2):(5*2)-3

=(120-50)/10-3

=7-3=4

\(\left(5^2.2^3-7^3.2\right):\left(2.6-7:2^5\right)\\ =\left(25.8-343.2\right):\left(12-7:32\right)\\ =\left(200-686\right):\left(12-\dfrac{7}{32}\right)\\ =-486:\dfrac{377}{32}=-486.\dfrac{32}{377}=-\dfrac{15552}{377}\)

(5^2*2^3-7^3*2):2*6-7:2^5

=(25*8-343*2):3-7/32

=-162-7/32=-5191/32