08-02-2017
Mathematics

contestada

r + 6r + 9 - 5r +6

A. 26r
B.1r + 15
C. 12r + 15
D. 2r + 15

Respuesta :

stanleyhaley stanleyhaley

08-02-2017

D. 2r+15 all you do is combine like terms so all ''r''s and constants

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