Answer:
53
Explanation:
To solve this problem you must apply the proccedure shown below:
1. You have the following exercise:
![10-(-43)](https://img.qammunity.org/2019/formulas/mathematics/middle-school/trostkglc6pv8sm0ndcrpa7sycvztjnepl.png)
2. You must multiply the signs. When you multiply two negative signs the result is positive:
![10+43](https://img.qammunity.org/2019/formulas/mathematics/middle-school/ytet6ft36snljq2l2lknddwyfpnhl4th8o.png)
3. Now, you can make the addition:
![10+43=53](https://img.qammunity.org/2019/formulas/mathematics/middle-school/th34b3xl2ixs5yinjcqlv1cp67hrnilzd8.png)