Variable x as the subject of the equation given is expressed as: x = p(m - n).
How to Make a Variable the Subject of the Formula?
To make a variable the subject of a formula implies that we express the equation in terms of the variable. Thus, to make a variable the subject of the formula, we have to make the variable stand alone on one side of the equation.
Given the equation, m = n + x/p, make x the subject as explained below:
m = n + x/p [given]
Subtract n from both sides
m - n= n + x/p - n (subtraction property of equality)
m - n = x/p
Multiply both sides by p
p(m - n) = x/p(p) (multiplication property)
p(m - n) = x
x = p(m - n)
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