Question

{[(x-2)*3-2]*3-2}*-2=1

va rog dau coroana ​

Answer 1

$\it \{\[[(x-2)\cdot3-2]\cdot3-2\}\cdot3-2=1\Big|_{+2} \Rightarrow \{\[[(x-2)\cdot3-2]\cdot3-2\}\cdot3=3\Big|_{:3} \Rightarrow \\ \\ \Rightarrow \[[(x-2)\cdot3-2]\cdot3-2=1|_{+2} \Rightarrow \[[(x-2)\cdot3-2]\cdot3=3|_{:3} \Rightarrow \\ \\ \Rightarrow (x-2)\cdot3-2=1|_{+2} \Rightarrow (x-2)\cdot3=3|_{:3} \Rightarrow x-2=1|_{+2} \Rightarrow x=3$

Answer 2

{[(x-2)•3-2]•3-2}•3-2=1
{[(x-2)•3-2]•3-2}•3=2+1
{[(X-2)•3-2]•3-2}•3=3
{[(x-2)•3-2]•3-2}=3:3
[(x-2)•3-2]•3-2=1
[(x-2)•3-2]•3=2+1
[(x-2)•3-2]•3 =3
(X-2)•3-2 =3:3
(X-2)•3-2 =1
(X-2)•3=2+1
(X-2 )•3=3
(X-2)=3:3
X-2=1
X=2+1
X=3

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