wintersnc21 wintersnc21
  • 08-02-2018
  • Mathematics
contestada

Twice the sum of a number and
5

is
8

.

Respuesta :

Аноним Аноним
  • 08-02-2018
Work backwards: 8/2=4. 5+x=4 which means 1+x=0. x=-1
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