Question

PLEASE HELP!!! I PUT 50 POINTS

Answer 1

Answer:

x=7

Step-by-step explanation:

7 times 3 =21   and 21 times 1 =21           cross multiply or butterfly method

Answer 2

Answer:

7

Step-by-step explanation:

1/3 = ?/21

1*? =?

3*? = 21

1*7 = 7

3*7 = 21