Step-by-step explanation: To add these polynomials,
we simply add (-3x + 6) + (7x - 8).
Notice that I used parenthses around the polynomials.
This is a good habit to get into even though
the parenthses will not affect the addition.
Next, we simply add the like terms.
-3x + 7x is 4x and 6 + -8 is -2 so we have 4x + -2 or 4x - 2.
