Answer:
Step-by-step explanation:
Like terms have same variables. Combine like terms.
2) (-4x + 6) + (x - 5) = -4x + 6 + x - 5
= -4x + x + 6 - 5
= -3x + 1
4) (-2x + 10) + (-8x - 1) = -2x + 10 - 8x - 1
= - 2x - 8x + 10 - 1
= - 10x + 9
6) (8x + 9) + (-6x - 1) = 8x + 9 - 6x - 1
= 8x - 6x + 9 - 1
= 2x + 8
