Seudónimo Seudónimo

18-09-2016
Mathematics

contestada

9m+14=2m How do I solve and check answer?

Respuesta :

patriciamonteiro patriciamonteiro

18-09-2016

9m+14=2m
9m-2m= -14
7m = -14
m= -2

to check: u need to chance the m to -2
9m - 2m= -14
9 × -2= -18
-2 × -2= -4
-18 - (-4)= -14
i think is right

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