oca23ms oca23ms
  • 29-09-2021
  • Mathematics
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2n-9 substract from 18n+4
Please explain step by step. Thanks

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Ffelecity
Ffelecity Ffelecity
  • 29-09-2021

Answer:

-16n - 13

Step-by-step explanation:

(2n-9) - (18n + 4)

1) Apply rule: (a) = a

  = 2n - 9 - (18n + 4)

2) Apply the distributive law

   = 2n - 9 - 18n - 4

3) Group like terms

    = 2n - 18n - 9 - 4

4) Subtract the numbers

    = 2n - 18n - 13

5) Add similar elements

   -16n - 13

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