Answer:
1, 3, 5 are true
Step-by-step explanation:
1. 2+5 = 19-12 is true because 7=7
2. This is false because after simplifying, you would get 1 = 0 which is false.
3. After simplifying, you would get -5 = -5 which is true. So, this equation is true.
4. After simplifying, you would get 2x+16 = 2x-8. This is false.
5. After simplifying, you would get -2x+10 = -2x+10. This equation is true.
So, only the first, third, and last equations are true.
