Question

How do you simplify `-8.2+6*(5-7)` using PEMDAS?

Answer 1

`-20.2`

Explanation:

`"evaluating using PEMDAS"`

[Parenthesis (brackets),Exponents (powers), Multiplication, Division, Addition, Subtraction]

`-8.2+6xx(-2)larrcolor(red)" brackets"`

`=-8.2-12larrcolor(red)" multiplication"`

`=-20.2larrcolor(red)" subtraction"`

Answer 2

`-8.2+6*(5-7)=-20.2`

Explanation:

PEMDAS stands for order of operations i.e. parentheses, then exponents, then multiplication and division and finaly addition and subtraction.

Hence `-8.2+6*(5-7)`

= `-8.2+6*(-2)` `->` simplifying parentheses

= `-8.2+(-12)` `->` doing multiplication

= `-8.2-12`

= `-20.2`