Final answer:
To solve an equation for one variable in terms of another, isolate the variable on one side of the equation.
Step-by-step explanation:
An example of an equation solving for one variable in terms of another (equivalent equations) is:
f(x) = 2x + 3
To solve this equation for x, we can isolate x by subtracting 3 from both sides:
f(x) - 3 = 2x
Then, we can divide both sides by 2 to solve for x:
x = (f(x) - 3) / 2