Q:

Solve for x in the mathematical formula y = mx + b. Find the variables to complete the formula.x = _____ - _____ / _____

Accepted Solution

A:
y = mx + b.  Solve for x:

Subtr. b from both sides.  Then, y - b = mx

Next, divide both sides by m, to isolate x:
       
       mx      y-b
x = ----- = -------           (answer)
        m         m

Important:

"x = _____ - _____ / _____ "

is a bit ambiguous.  Please enclose the numerator inside parentheses, like this:

x = ( _____ - _____ ) / _____      Then it becomes clear that we must perform
 
the subtraction first, before the division.