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
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