194 - 24 : (12 : 3 x x -3) -25 = 145
194 - 24 : (4 x x -3) -25 = 145
24 : (4 x x -3) = 194 - 145 + 25
24 : (4 x x -3) = 24
4 x x -3 = 24 : 24
4 x x -3 = 1
4 \(\times\)x = 1 + 3
4 \(\times\)x = 4
x = 4 : 4
x = 1
$169-24:(4 x \text{x} -3)=145$
$24:(4 x \text{x}-3)=24$
$4 x \text{x}-3=1$
$4 x \text{x}=4$
$\text{x}=1$
Vậy $\text{x}=1$
`194 - 24 : (12 : 3 x xx -3) -25 = 145`
`24 : (4 xx x-3) = 194-(145+25)`
`24 : (4 xx x-3) = 24`
`4 xx x -3 = 1`
`4 xx x=1+3`
`4 xx x=4`
`x=4:4`
`x=1`.
194 - 24 : (12 : 3 x x -3) -25 = 145
194 - 24 : (12 : 3 x x -3) =145+25
194 - 24 : (12 : 3 x x -3) =170
24: (12 : 3 x x -3) =194 - 170
24: (12 : 3 x x -3) = 24
(12 : 3 x x -3) =24:24
(12 : 3 x x -3) =1
12 : 3 x x =1+3
12 : 3 x x =4
3 x x =12:4
3 x x =3
x =3:3
x =
Vậy x =1
194 - 24 : (12 : 3 x x - 3) - 25 = 145
⇔ 194 - 24 : ( 4 x x - 3) - 25 = 145
⇔ 169 - 24 : ( 4 x x - 3) = 145
⇔ -24 : ( 4 x x - 3) = 145 - 169
⇔ -24 : ( 4 x x - 3) = -24
⇔ 4 x x - 3 = -24 : (-24)
⇔ 4 x x - 3 = 1
⇔ 4 x x = 1 + 3
⇔ 4 x x = 4
⇔ x = 4 : 4
⇔ x = 1
Vậy x = 1
194 - 24 : (12 : 3 x x -3) -25 = 145
194 - 24 : (4 x x -3) -25 = 145
24 : (4 x x -3) = 194 - 145 + 25
24 : (4 x x -3) = 24
4 x x -3 = 24 : 24
4 x x -3 = 1
4 ××x = 1 + 3
4 ××x = 4
x = 4 : 4
x = 1.
