First, let's declare our variables.
x = variable 1
x + 1 = variable 2
x + 2 = variable 3
Now, let's create our expression.
x + x+1 + x+2 = 147
Let's add like terms
3x + 3 = 147
Subtract 3 from both sides
3x = 144
Divide both sides by 3
x = 48
x + 1 = 48 + 1 = 49
x + 2 = 48 + 2 = 50
