morgankeller1207
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. Given the number n, write an expression for:
(a) Twice the sum of n and 5
(b) The sum of twice n and 5

© Give a numerical example that shows these are not the same expression.

Respuesta :

devishri1977

Answer:

a) 2(n + 5)

b) 2n + 5

Step-by-step explanation:

Writing an     algebraic expression:

  a) Sum of n and 5 ⇒   n + 5

     Twice sum of n and 5 ⇒   2*(n +5)  = 2*n + 2*5

                                                                = 2n + 10

b) Twice n ⇒ 2*n = n

Sum of twice n and 5 ⇒   2n + 5

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