El valor de *x* en la operación de -4+2x=0?​

Add 4 to both sides to isolate the variable (-4+4=0) (2x+0=2x) (0+4=4) which leaves you with 2x=4 divide both sides by 2 to get rid of the number in front of the variable to get x by itself (2x/2=x) (4/2=2) therefore you’re left with x=2 (lo siento yo no hablo español la respuesta es x=2)

Well if you have 20 bats you probably want 20 balls? you don’t have enough context to answer the question.