Answer:
x=2.65
Explanation:
First, we need to figure out how much the length of the sides is changing between the equations. In this case it is changing by a factor of 2.5. Now we need to work backwards. First use this equation:
![4x-5*2.5=14](https://img.qammunity.org/2022/formulas/mathematics/high-school/cxqljqc9txb85r8ib504gz2pnv35w2pnd0.png)
This is because whatever the length of the side with x is, will be 14/2.5. So divide both sides by 2.5:
![4x-5=5.6](https://img.qammunity.org/2022/formulas/mathematics/high-school/5uk04urghsqfa77ef3ubas1ra7v0bk5eec.png)
Next, add 5 to both sides:
![4x=10.6](https://img.qammunity.org/2022/formulas/mathematics/high-school/f8rl1tvzcuh7g0nhue22ntfedevuz6vxn2.png)
Then divide both sides by 4:
![x=2.65](https://img.qammunity.org/2022/formulas/mathematics/high-school/u7f8oouhnkbnuqp484z2yzq5b6hzgznl9l.png)