Question

x+30=50 what is the meaning of X

Answer 1

Hey there!

50 - 30 = 20

x = 20

Hope this helps
Have a great day (:

Answer 2

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.