Respuesta :

The answer is: 12 = q

[tex]\frac{21}{35} = \frac{q}{20}[/tex]

cross-multiply

(20 * 21 = 420; 420 / 35 = 12)

12 = q

Answer: q = 12

Step-by-step explanation:

If it is too hard to find a common factor/multiple, cross multiply.

35q = 420

Divide 35 into 420

q = 12

**SORRY IF I AM WRONG. THIS IS JUST HOW I LEARNT IT**