Respuesta :
Answer:
x=9
Step-by-step explanation:
hope this helps i think it's right 60=9x - 21 you add 21 to both sides and get 81 = 9x then divide 81 by 9 and get x=9
Answer:
x = 9
Step-by-step explanation:
you add 21 by both sides then divide by 9 on both sides then you get 9