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15-01-2020
Mathematics

contestada

Add (-11) + (-9).
O2
O-2
0 -20
o 20

Respuesta :

calvinrocks808 calvinrocks808

15-01-2020

Answer:

-20

Step-by-step explanation:

A negative plus a negative is usally a negative. Its just like adding except you add a negative sign

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