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When the problem is stated as "solve ... for x", the desired answer is of the form
x = ...
and you get there by manipulating the equation using the rules of algebra, such as:
you can add, subtract, multiply, or divide as long as you do the same thing on both sides of the equals sign, thus maintaining the equality
you can multiply or divide both the numerator and denominator of a fraction by the same thing...that is, multiply the fraction by 1.
For
you should start by multiplying both sides of the equation by (cx + d)
