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How It’s Used
The basic laws of algebra are used in all kinds of jobs. The two laws explained here, and a few more, are used in any field that works with numbers and formulas. These fields include accounting, engineering, biology, and many others.
In the bench press example, we saw how the weights on both sides of a bar must balance. In the next section, Weight Room Mechanics, we¹ll look at more complicated examples of balance. We’ll see how the laws can be used to find the forces on parts and build them to the right size. This will help show how all kinds of equipment and machinery are designed.

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