Answer:
x= 3
Step-by-step explanation:
1. -5(3) + 2 = -13      
2. -15 + 2 = -13         <em>A positive times a negative will always equal a negative</em>
3. -13 = -13         <em>Whenever you add anything to a negative number, the                    </em>
<em>                            number becomes smaller   </em>
                      Ex:  -10, -9, -8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, ...........
                            <em>Although the number itself becomes smaller, its value    </em>
<em>                             becomes bigger       </em>
Hope this helps.