eunice3 eunice3

10-09-2017
Mathematics

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What's the difference of 9(2k-4) and -2(7k-12)

Respuesta :

10-09-2017

9(2k - 4) = 18k - 36 // Multiply 9 to both 2k and 4
-2(7k - 12) = -14k + 24 // Multiply -2 to both 7k and -12

18k - 36 - (-14k + 24) = 18k - 36 + 14k - 24 // Don't forget to distribute the negative to both -14k and 24

32k - 60 // Answer

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