x = [tex]\frac{y - a}{b}[/tex]
isolate the term in x
subtract a from both sides of the equation
y - a = bx
divide both sides by b
[tex]\frac{y - a}{b}[/tex] = x
y = bx + a
-a -a
y - a = bx
[tex]\frac{y - a}{b} = \frac{bx}{b}[/tex]
[tex]\frac{y - a}{b} = x[/tex]
