miriamortiz miriamortiz

29-10-2020
Mathematics

contestada

Which is not a mathematical sentence?
A. y + 4 = 20
B. 7-r212
C. 6m
D. 9 - 2 = 7

Respuesta :

lakhaniaahil lakhaniaahil

29-10-2020

Answer:

B. 7-r212

Step-by-step explanation:

The coefficient should be in front of the variable.

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