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i think of a number,double it and add 12. the result is 48

Sagot :

Answer:

  18

Step-by-step explanation:

You want a number that results in 48 after 12 is added to its double.

Undo

Working backward from the result, we find the doubled number is ...

  48 -12 = 36

Then the original number is ...

  36/2 = 18.

__

Check

When 18 is doubled and 12 is added, the result is 36+12 = 48, as required.

Answer:

18

Step-by-step explanation:

x*2+12=48
2x+12=48

2x=48-12

2x=36

x=18