DJS1147 DJS1147

15-10-2016
Mathematics

contestada

Please solve 21=5n-2(n-3)

Respuesta :

15-10-2016

21 = 5n-2(n-3)

21 = 5n-2n+6

21-6 = 3n

n=15/3

n=5

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madhattedlady madhattedlady

15-10-2016

5=n because you multiply -2 times n then -3 then you add -2n with 5n then subtract 6 from both sides and finally divide by 3

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