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

2 Answers
Jun 11, 2017

Answer:

#-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"#

Jun 11, 2017

Answer:

#-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#