Cual es el valor en x en las siguientes ecuasiones
1).2x-10=-2x+18
2).8x+20=3x+50

List the elements of the set in roster notation. (enter empty or ∅ for the empty set.) {x | x is a letter in the word hippopotamus}

How do i make someone brainliest? (if you answer me, i might be able to make you brainliest! )

If square root x = -7, then x= -49 true or false