Pammilla Pammilla

15-06-2018
Mathematics

contestada

Twice the difference of a number and seven is equal to three times the sum of the number and seven

Respuesta :

altavistard altavistard

15-06-2018

2(n-7) = 3(n+7)
2n-14 = 3n + 21
-35 = n (answer)

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