Answer:
Equation: ![30=2(x-2)+2(2x+3)](https://tex.z-dn.net/?f=30%3D2%28x-2%29%2B2%282x%2B3%29)
Step-by-step explanation:
By definition, the perimeter of a figure can be calculated by adding the lenghts of its sides.
Knowing this, you can write the following equation:
<em> [Equation 1]</em>
According to the data given in the exercise, the perimeter in feet of the fighter is:
![P=30](https://tex.z-dn.net/?f=P%3D30)
Therefore, you can substitute this values into<em> [Equation 1]:</em>
![30=2(x-2)+2(2x+3)](https://tex.z-dn.net/?f=30%3D2%28x-2%29%2B2%282x%2B3%29)
Finally, you must solve for "x" in order to find its value. This is:
![30=6x+2\\\\30-2=6x\\\\\frac{28}{6}=x\\\\x=\frac{14}{3}](https://tex.z-dn.net/?f=30%3D6x%2B2%5C%5C%5C%5C30-2%3D6x%5C%5C%5C%5C%5Cfrac%7B28%7D%7B6%7D%3Dx%5C%5C%5C%5Cx%3D%5Cfrac%7B14%7D%7B3%7D)