Answer:
1. 5x - 2
2. 5x + 2
3. -5x - 2
4. -5x + 2
Step-by-step explanation:
Combine like terms
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12x+8-7x-10= 5x-2
17/3x+17-2/3x-15= 5x+2
8-12x-10+7x= -5x-2
9-9/2x-1/2x-7= -5x+2
