Answer:
1. 8/8 or 1
2. 11/24
3. 7x+7 or 7(x+1) if factored version is needed
4. 5x^2-4x-5
1. no solution required
2. lcd is 24
5/8 × 3/3 =15/24
1/6 × 4/4 = 4/24
15/24-4/24=11/24
since the lcd is 24, you should look for numbers you can multiply to the given to make the denominators 24
3. 3x+5x-x+7
3x+5x=8x
8x-x=7x
7x+7
4. 5x^2-6x+2x-5
-6x+2x=-4x
5x^2-4x-5
only add and subtract those who have the same variable and degree
