Final answer:
The number of uniforms purchased can be found by setting up the equation $612 + $25x = $912, solving for x, which represents the number of uniforms. Subtract $612 from both sides and then divide by $25 to get the answer.
Step-by-step explanation:
The question involves creating an equation to calculate the number of uniforms purchased by a football team given a total expense for equipment and uniforms. Given that the equipment costs $612 and each uniform costs $25, we can express this situation with the following equation: $612 + $25x = $912, where x represents the number of uniforms.
To solve for x, we subtract $612 from both sides of the equation, which gives us $25x = $912 - $612. Then we divide both sides by $25 to get x = ($912 - $612) / $25, finally calculating x to determine the number of uniforms purchased.