Respuesta :

Answer: x=3

Step 1: multiply both sides of the equation by 21

21 × 1/21 x = 21 × 1/7

Step 2: Reduce the number with the greatest common factor 21.
x= 21 × 1/7

Step 3: Reduce the number with the greatest common factor 7.
x=3

Answer:

x=3

Step-by-step explanation:

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