Respuesta :

7x=21

divide both sides by 7 to get x by itself

7x/7= 21/7

cross out 7 and 7 , divide by 7

then becomes 1*1*x= x

x= 21/7

Answer:

x= 3

Answer:

x is 3......♥................

Step-by-step explanation:

7x=21

x=21/7

x=3