gianinacotfas74 gianinacotfas74

14-10-2018
Mathematics

contestada

13r+5s-2r=
(3a-b)+2a=
12+9x-6x-19=

Respuesta :

14-10-2018

1.11r - 5s
2.5a - b
3.-7 + 3x

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