Question

Plz show work
3(10-x)=21

Answer 1

x=3 because if you divide 21 and 3 you get 7 and in order to change the ten to a 7 you have to subtract it by 3. so x=3

Answer 2

x = 3

Explanation:

3(10-x)=21

30-3x=21

-30 -30

-3x=-9

x=3