Subtract -3x+8 and -3x+9

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Calculate the difference of (-3x + 8) - (-3x + 9)

Since we are subtracting, we need to multiply each term in -3x + 9 by -1
-1 x (-3x + 9) = 3x - 9

Collecting all of our terms, our resulting expression is:

-3x + 8 + 3x - 9

Now group all of our x terms:
-3x + 3x = 0x

Now group all of our constant terms:
8 - 9 = -1

Now take our groupings of terms by powers and constants and form our answer:

- 1


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