Sometimes, it might seem like your geoscience instructor is speaking an additional language when he/she talks about equations or formulae. Especially if he/she expects you to "manipulate" or reararray them! But, equations deserve to administer effective devices for describing the natural human being. In the geosciences, we deserve to define the actions of many kind of organic phenomena by writing an equation for a line (y = mx + b), or with exponential features (y = ext). And with a little algebra, we can reararray those equations to settle for ANY of the variables in them.Although this might seem favor magic, you don't need to be a "mathemagician" to perform this. This web page is designed to give you some devices to speak to upon to assist you to learn some simple steps to aid you to resolve an equation for any of the variables (letters that reexisting the element or amount of interest).

## Why have to I manipulate equations?

You are watching: Why is it useful to rewrite a formula in terms of another variable

Show credits
Hide

See more: What Does A Red Exclamation Mark Mean On Facebook Message? Red Exclamation Mark Beside Facebook Message

Photo of Ken Andrews (scientist at JPL) juggling. Modified by Jen Wenner.

Believe it or not, there are many kind of great reasons to construct your capacity to rearrange equations that are crucial to the geosciences. It deserve to conserve time, help you with units and save some brain space! Here are some factors to build your equation manipulation abilities (in no particular order):

Equations are simpler to manage before inserting numbers! And, if you can isolate a variable on one side of the equation, it is applicable to every similar difficulty that asks you to solve for that variable! If you recognize just how to manipulate equations, you only need to remember one equation that has all the variables of question in it - you can manipulate it to fix for any kind of other variable! This indicates much less memorization! Manipulating equations can assist you keep track of (or figure out) devices on a number. Since systems are defined by the equations, if you manipulate, plug in numbers and also cancel units, you'll finish up through precisely the ideal devices (for a offered variable)!

## Wright here is this provided in the geosciences?

To be honest, equation manipulation occurs in nearly eextremely facet of the geosciences. Any time you see a P or T or ρ or x (or also =), tbelow is an equation that you can manipulate. Since equations have the right to be provided to define many vital herbal sensations, being able to manipulate them provides you a powerful tool for understanding the civilization roughly you!