Answer:
Length of one side of square is
![a= 2x-3](https://img.qammunity.org/2020/formulas/mathematics/middle-school/6d99yiva9i9u6iarobh961cz84myjsuzh6.png)
Explanation:
In this question we have given that perimeter of square=8x-10+8-10.............(1)
Let us consider length of one side of square be 'a'
therefore, perimeter of square =4a..................(2)
frome equation 1 and 2
![4a=8x-10+8-10](https://img.qammunity.org/2020/formulas/mathematics/middle-school/ydme0shs9tw4ayglb58lrqpmkyrdqugqhf.png)
![4a=8x-12](https://img.qammunity.org/2020/formulas/mathematics/middle-school/wkxq5xekx8hhovr59e75s0lztonqoh9b80.png)
![a= frac{8x-12}{4}](https://img.qammunity.org/2020/formulas/mathematics/middle-school/6xu8m1ggr1o5jxp8eknkghtkorogk2kau2.png)
![a= 2x-3](https://img.qammunity.org/2020/formulas/mathematics/middle-school/6d99yiva9i9u6iarobh961cz84myjsuzh6.png)
Therefore,
length of one side of square is
![a= 2x-3](https://img.qammunity.org/2020/formulas/mathematics/middle-school/6d99yiva9i9u6iarobh961cz84myjsuzh6.png)