Answer:
Equivalent expression is
![15a+8b](https://img.qammunity.org/2021/formulas/mathematics/middle-school/f80dx2k1r4grtk51227hfns9pncdbmjkdq.png)
Explanation:
Given expression is,
![2\left(5a+3b\right)+5a+2b](https://img.qammunity.org/2021/formulas/mathematics/middle-school/mne0gbozy98zbq3cj2vinkpffzdqe1fgst.png)
First step is to apply distributive property. The property states that,
![a\left(b+c\right)=ab+ac](https://img.qammunity.org/2021/formulas/mathematics/middle-school/r47yv0juhxtmgxqcqk1ajeatxbxppnl962.png)
Applying the property,
![2\left(5a\right)+2\left(3b\right)+5a+2b](https://img.qammunity.org/2021/formulas/mathematics/middle-school/rd130srzvja5vq1s48mhzsp35ps9upy149.png)
Simplifying,
![10a+6b+5a+2b](https://img.qammunity.org/2021/formulas/mathematics/middle-school/plj7zht87vxz2gqeeouqak8rsn8gt8geo6.png)
Collecting like terms,
![10a+5a+6b+2b](https://img.qammunity.org/2021/formulas/mathematics/middle-school/82rq5y9mrca8dza4pfx8gcdx90q5xyn4kd.png)
Combining the like terms,
![15a+8b](https://img.qammunity.org/2021/formulas/mathematics/middle-school/f80dx2k1r4grtk51227hfns9pncdbmjkdq.png)
Therefore, equivalent expression is
![2\left(5a+3b\right)+5a+2b=15a+8b](https://img.qammunity.org/2021/formulas/mathematics/middle-school/lj15rk7zsea8fyjkhcb75zm1kgc21evcfm.png)