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Which expression is equivalent to 7m+5.5(2+m)
?

User AmanVirdi
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1 Answer

7 votes

Pour développer il faut appliquer la distributivité de la multiplication :

7m + 5.5(2+m) = 7m + 5.5 x 2 + 5.5m

= 7m + 11 + 5.5m

Il faut combiner les termes contenant m :

= 7m + 5.5m + 11

= (7 + 5.5)m + 11

= 12.5m + 11

User Josephine
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