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17-11-2020
Mathematics

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Why is 3 m + 4 (m + 12) and 7 m + 12 equal

Respuesta :

17-11-2020

Answer:

14m+60

Step-by-step explanation:

=3m+4(m+12)+(7m+12)

removing bracket, we get

=3m+4m+12×4+7m+12

=3m+4m+7m+48+12

14m+60

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