beebeebumble
beebeebumble beebeebumble
  • 11-03-2016
  • Mathematics
contestada

Simplify.

–12 + 9 – (–3) – 11

A.
–17

B.
–11

C.
7

D.
13

Respuesta :

meerkat18
meerkat18 meerkat18
  • 11-03-2016
-12 + 9 - (-3) - 11

Remember PEMDAS: This is the order of operation.
P-Paragrahp
E-Exponent
M-Multiply
D-Divide
A-Add
S-Subtract

1st step: PEM
-(-3) is actually -1 * -3 = + 3

-12 + 9 + 3 - 11

2nd step: D is not possible, so we do A.
9 + 3 = 12

3rd Step: Subtract
12 - 12 - 11 = 0 - 11 = -11 CHOICE B. 

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