Question

Simplify the following mathematical expressions:

$42-[20-\{19-(14-8-4)\left\}\right]$

Answer 1

Finding the Value of an Expression:

Step $1$: Simplifying the expression using BODMAS.

$42-[20-\{19-(14-8-4)\left\}\right]$ ;Solving open brackets

$=42-[20-\{19-(14-12)\left\}\right]$ ;Solving open brackets-Subtraction

$=42-[20-\{19-2\left\}\right]$ ;Solving curly brackets-Subtraction

$=42-[20-17]$, ;Solving squared brackets-Subtraction

$=42-3$ ;Subtraction

$=39$

Hence the value of expression is $39$.