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I would like to know the process for finding this answer. I do know the method is order of operations-- utilizing PEMDAS, however I'm slightly confused with the parentheses part of this equation. Do I go in order or divide first in the parentheses?

 

$${\mathtt{5}}{\mathtt{\,\small\textbf+\,}}{\mathtt{3}}{\mathtt{\,\times\,}}\left({\mathtt{2}}{\mathtt{\,-\,}}{\frac{{\mathtt{12}}}{{\mathtt{2}}}}\right) = -{\mathtt{7}}$$

 Aug 21, 2015

Best Answer 

 #1
avatar+128475 
+8

5 + 3 x (2 - 12/2)  =     work inside the parentheses performing the division, first...so we have

 

5 + 3 x (2 - 6)  =      simplify inside the parenthesis

 

5 + 3 x ( -4)  =     now.....working from left to right, we perform any multiplications/divisions before additions/subtractions....this gives

 

5 + [-12]  =    now, just add/subtract

 

-7

 

Easy, huh???

 

 

 Aug 21, 2015
 #1
avatar+128475 
+8
Best Answer

5 + 3 x (2 - 12/2)  =     work inside the parentheses performing the division, first...so we have

 

5 + 3 x (2 - 6)  =      simplify inside the parenthesis

 

5 + 3 x ( -4)  =     now.....working from left to right, we perform any multiplications/divisions before additions/subtractions....this gives

 

5 + [-12]  =    now, just add/subtract

 

-7

 

Easy, huh???

 

 

CPhill Aug 21, 2015

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