1) 2x and x have the same power. They are both to the 1st power so you combine those to get 3x. The 6 and the -1 will be combined because they are similar, they have no variables and no degree powers to get 3x+5

2) combine 6x+-x to get 5x. Then the 5+2 to get 7. Answer being 5x+7

3)The 8x and 4x are combined to get 12x. The -3-2 are combined to get -5, the answer will be 12x-5

1. 2x + 6 + x – 1 = 2x + x + 6 – 1 = 3x + 5, [D]

2. 6x + 5 – x + 2 = 6x – x + 5 + 2 = 5x + 7, [B]

3. 8x – 3 + 4x – 2 =8x + 4x – 3 – 2 = 12x – 5, [B]

2. B. 5x+7

3. B. 12x-5

2. b (6x-x)+(5+2)

3. b (8x+4x)+(-3-2)

comine ur like terms:

2x+6+x-1

(2x+1x) + (6-1)

3x + 5