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a) (x – 45).27 = 0 ó x – 45 = 0 ó x = 45
b) 41.(2x – 8).13 = 0 ó 2x – 8 = 0 ó x = 4
c) (x – 36):18 = 12 ó x – 36 = 12.18 ó x = 216 + 36 ó x = 252
d) 43.(x – 18) = 86 ó x – 18 = 86:43 ó x = 2+18 ó x = 20
e) 96 : (121 – x) = 4 ó 121 – x = 96 : 4 ó 121 – x = 24 ó x = 121 – 24 ó x = 97
f) 340 : (15x+5) = 17 ó 15x + 15 = 340 :17 ó 15x + 5 = 20 ó 15x = 20 – 5 ó 15x = 15 ó x = 1
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a)x/13=41
x=41*13
x=533. Vậy x=533
b)1428/x=14
x=1428/14
x=102. Vậy x=102
c)4x/17=0
4x=0*17
4x=0
x=4/0
x=0. Vậy x=0
d)7x-8=713
7x=713+8
7x=721
x=721/7
x=103. Vậy x=103
e)8(x-3)=0
x-3=0/8
x-3=0
x=0+3
x=3. Vậy x=3
g)0/x=0
=> x là vô số
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a/ x = 533
b/ x = 102
c/ 4x = 0 => x = 0
d/ 7x = 721 => x = 103
e/ x - 3 = 0 => x = 3
g/ x = 0
a,x:13=41
x=41x13
x=353
Vậy x=353 (tính lại nhé nếu mk tính sai)
b,1428:x=14
x=1428:4
x=102
Vậy x=102
c,4x:17=0
4x=0x17
4x=0
x=0:4
x=0
Vậy x = 0
d,7x-8=713
7x=713+8
7x=721
x=721:7
x=103
Vậy x = 103
e, 8(x-3)=0
x-3=0:8
x-3=0
x=0+3
x=3
Vậy x=3
g,0:x=0
Ta thấy 0 chia cho bất kỳ số tự nhiên nào khác 0 đều bằng 0.
=>x\(\in\)N*
Vậy x\(\in\)N*
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ko cần hỏi lm j cho tốn công đâu bn ơi!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
a) x : 13 = 41
x = 41 x 13
x = 533
b) 1428 : x = 14
x = 1428 : 14
x = 102
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a) x : 13 = 41
x=41.13
x=533
b) 4x : 17 = 0
⇒4x=0
⇒x=0
c) 8(x - 3) = 0
⇒x-3=0
x=0+3
x=3
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a) x : 13 = 41
=> x = 41.13
=> x = 533
b, 1428 : x = 14
=> x = 1428 : 14
=> x = 102
c, 4x : 17 = 0
=> 4x = 0.17
=> 4x = 0
=> x = 0 : 4
=> x = 0
d , 7x-8=713
=> 7x = 713 +8
=> 7x = 721
=> x = 103
e, 8(x-3)=0
=> x-3=0
=> x = 3
g,
0:x = 0
=> x=0:0
=> sai đề vì mẫu ko đc bằng 0
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a) x:13=41
=> x = 41 x 13
=> x = 533
b) 1428 : x = 14
=> x = 1428 : 14
=> x = 102
c) 7x - 8 = 713
=> 7x = 713 + 8
=> 7x = 721
=> x = 721 : 7
=> x = 103
d) 4x:17=0
=> 4x = 0 x 17
=> 4x = 0
=> x = 0 : 4
=> x = 4
Chọn mình nhé !
\(41\cdot\left(2x-8\right)=0\)
\(\Rightarrow2x-8=0\)
\(\Rightarrow2x=8\)
\(\Rightarrow x=\dfrac{8}{2}=4\)
41.(2x-8)=0
2x-8=0:41
2x-8=0
2x =0+8
2x =8
x =8:2
x=4
vậy x=4