Button State save, 2 buttons?

Projects Programming
2

The several things at a time post and this post on using millis() may help with getting rid of those deleys.

if(digitalRead(5 && 3)==LOW){

That evaluates to,

if(digitalRead(1) == LOW);

You must separate the 2 digital reads.
Should be

if(digitalRead(5) == LOW && digitalRead(3) == LOW);

  digitalWrite(9, HIGH);
  digitalWrite(5, HIGH);
  digitalWrite(3, HIGH);

You already set the pinModes tro INPUT_PULLUP. No reason to write those pins to HIGH.