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seven less than a third of the sum of a number and two​

Sagot :

The number is 15.

   2x/3-7=3

   3(2x/3–7)=3×3

   2x-21+21=9+21

   2x/2=30/2

   x=15

Proof

   15×2=30

   30/3=10

   10–7=3