Respuesta :

Hey there!

50 - 30 = 20

x = 20

Hope this helps
Have a great day (:
x= an unknown variable that makes the output (50)= 50

We can balance the equation to find x. Subtract 30 on both sides. 

x+30(-30)= 50(-30)

x=20

There ya go. 
ACCESS MORE
EDU ACCESS