Gabrielle111 Gabrielle111

27-04-2017
Mathematics

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How do I do this problem 4(5n-7)=10n+3

Respuesta :

mreijepatmat mreijepatmat

27-04-2017

a) get rid of the parenthesis 4(5n-7) = 20n-28,

so 20n-28=10n+3===>transpose 10n from the left to the right it becomes -10n & transpose -28 from the left to the right it becomes +28

10n=31 & n=31/10 ==> n=3.1

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