Answer:
1. 7
2. -20
3. 1
4. -9
5. 0
6. 5
7. 1
8. -1
9. -19
10. 1
Answer: nonsense
Step-by-step explanation:
7x+3=5(x-3)+2x
7x+3=5x-15+2x
7x+3-5x+15-2x=0
18=0
Non-sense
Linear pair.