Falling ball errors- what are the five errors in this program

//MovingBallDebug

float x,speedx;

void setup(){
  size(255,200);
  x = width/2;
  y = height/2;
  speedx = 0;
}}

void draw(){
  background(255)
  if(keyPressed ==true) {
    if (key == "a") {
      speedx = speedx - 0.1;
    }
  }else{
    speedx=0;
  }}
  
  x=x +speedx;
  constrain(x,0,width);
  
  //plot ellipse
  fill(x,155,255);
  ellipse(x,y,50,50);
  }

If you post a code you post it like:
Single-line : like this

Multiline :


also link the challenge you are onto

I’ve edited your post for readability. When you enter a code block into a forum post, please precede it with a separate line of three backticks and follow it with a separate line of three backticks to make it easier to read.

See this post to find the backtick on your keyboard. The “preformatted text” tool in the editor (</>) will also add backticks around text.

Note: Backticks are not single quotes.

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