Respuesta :

Answer:

answer=15

Step-by-step explanation:

12 + ( 1/2x + 3) = 45

subtract 12 from each side

(1/2x + 3 = 33

subtract 3 from each side

1/2x = 30

x=15

                       

The expression is written by the equation 1 / 2X + 3 + 12 = 45.

To write the expression: 12 more than the sum of half a number and 3 is 45 in a correctly formulated equation, the following analysis must be performed:

  • 12 = is added to the remaining numbers
  • The sum of half a number and 3 = main mathematical operation
  • 45 = result
  • 1 / 2X + 3 + 12 = 45
  • 1 / 2X = 30
  • X = 60

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