\(\left[57+3\left(x-10\right)\right]:18=9=>57+3\left(x-10\right)=9.18=162\)
\(=>3\left(x-10\right)=162-57=105=>x-10=105:3=35=>x=35+10=45\)
\(\left(57+3\left(x-10\right)\right):18=9\)
\(=>57+3\left(x-10\right)=162\)
\(=>3\left(x-10\right)=105\)
\(=>x-10=35\)
\(=>x=45\)
[ 57 + 3 ( x - 10 ) ] : 18 = 9
[ 57 + 3 ( x - 10 ) ] = 9 x 18
[ 57 + 3 ( x - 10 ) ] = 162
3 ( x - 10 ) ] = 162 - 57
3 ( x - 10 ) = 105
( x - 10 ) = 105 : 3
( x - 10 ) = 35
x = 35 + 10
x = 45
[57+3(x-10)]/18=9
57+3(x-10) =9.18
57+3(x-10) =162
3(x-10) =162-57
3(x-10) = 105
x-10 =105/3
x-10 = 35
x = 35+10
x = 45