Question

10 - {[( x : 3 + 17) : 10 + 3 . \(2^4\)] : 10 } = 5

Answer 1

\(10-\left\{\left[\left(x:3+17\right):10+3.2^4\right]:10\right\}=5\)
\(\Leftrightarrow10-\left\{\left[\left(x:3+17\right):10+3.16\right]:10\right\}=5\)
\(\Leftrightarrow10-\left\{\left[\left(x:3+17\right):10+78\right]:10\right\}=5\)
\(\Leftrightarrow\left[\left(x:3+17\right):10+78\right]:10=5\)
\(\Leftrightarrow\left[\left(x:3+17\right):10+78\right]=50\)|
\(\Leftrightarrow\left(x:3+17\right):10=-28\)
\(\Leftrightarrow x:3+17=-280\)
\(\Leftrightarrow x:3=-297\)
\(\Leftrightarrow x=-99\)
Vậy \(x=-99\) thì \(10-\left\{\left[\left(x:3+17\right):10+3.2^4\right]:10\right\}=5\)