4-(27-3)=x-(13-4)
1.(x+1)/35 + (x+3)/33 = (x+5)/33 + (x+7)/20
2. (X+1)/12+ (X+2)/13 = (X+3)/14+ (X+4)/15
3. (X-85)/15+ (X-75)/13+(X-67)/11+ (X-64)/9=10
4. (X-1)/13-(2X-13)/15=(3X-15)/27- (4X-27)/29
2: \(\Leftrightarrow\left(\dfrac{x+1}{12}-1\right)+\left(\dfrac{x+2}{13}-1\right)=\left(\dfrac{x+3}{14}-1\right)+\left(\dfrac{x+4}{15}-1\right)\)
=>x-11=0
=>x=11
3: \(\Leftrightarrow\left(\dfrac{x-85}{15}-1\right)+\left(\dfrac{x-74}{13}-2\right)+\left(\dfrac{x-67}{11}-3\right)+\left(\dfrac{x-64}{9}-4\right)=0\)
=>x-100=0
=>x=100
4-(27-3)=x-(13-4)
4-(27-3)=x-(13-4)
x-(13-4)=4-(27-3)
x-9=4-24
x-9=-20
x=-20+9
x=-11
Vậy x=-11
4-(27-3)=x-(13-4)
4-27+3=x-13+4
-20=x-9
x=11
Vậy x=11
4 - ( 27 - 3 ) = x - (13 - 4 )
4 - ( 27 - 3 ) = x - ( 13 - 4 )
4 - ( 27 - 3 ) = x - 9
4 - 24 = x - 9
x - 9 = 4 - 24
x - 9 = -20
x = -20 + 9
x = -11
Vậy x là -11.
4-(27-3)=x-(13-4)
4 - ( 27 - 3) = x - ( 13 - 4 )
4 - 24 = x - 9
- 20 = x - 9
x - 9 = - 20
x = -11
vậy: x = -11
4 - (27 - 3) = x - (13 - 4)
4 - 24 = x - 9
-20 = x - 9
x - 9 = -20
x = (-20) + 9
x = -11
4 - (27 - 3) = x - (13 - 4)
4 - 24 = x - 9
-20 = x - 9
x - 9 = -20
x = (-20) + 9
x = -11
Tìm số nguyên x, biết 4 – (27 - 3) = x – (13 - 4).
4 – (27 – 3) = x – (13 – 4)
4 – 27 + 3 = x – 13 + 4 (bỏ ngoặc)
4 – 27 + 3 + 13 – 4 = x (chuyển vế –13 và 4)
–27 + 16 = x
–11 = x.
Vậy x = –11.
6. 27/35 x 5/9 - 2/7 x -7/5
7. 10/13 x 13/5 + {-9/5} x 10/3
8. 100/27 x 9/20 + 40% x 5/3
9. 1,5 x 5/12 + 1/4 x 3/4
9: =3/2*5/12+3/16
=15/24+3/16
=5/8+3/16
=13/16
Tim x
4-(27-3)=x-(13-4)
4-(27-3)=x-(13-4)
4-24=x-9
=>x-9=4-24
x-9=-20
x=-20+9
x=-11
Tìm số nguyên x, biết: 4 - (27-3) = x - (13-4)
4-(27-3)=x-(13-4)
=>-20=x-9
=>x=-20+9
=>x=-11
4-27+3=x-13+4
-20=x-13+4
x-13+4=-20
x-13=-20-4
x-13=-24
x=-24+13
x=-11
4 - (27-3) = x - (13-4)
=.x=-11
Tìm số nguyên x, biết : 4-(27-3) =x-(13-4)
x=1234567............... 1 TRONG CÁC SỐ ĐÓ
-11 nhé
4-(27-3)=x-(13-4)
-20=x-(13-4)
-20=x-9
x=-20+9
x=-11