Linear Equations (finding value of one unknown)

Finding the value of a unknown 

Example:  2x + 6 = 0

 {take 6 to the other side of the equal sign and it change's to a negative meaning it becomes a negative-6}

2x = 0 -6 

Meaning: 2x = -6

{divide both sides with 2 so we can have x alone one side} 

Meaning:

2x /2 = -6/2

x = 3 

Try out: 

3y + 4 = 7

p - 4 = 3p + 4