Final answer:
The equivalent linear expression to -6+8-3x-9x is -12x + 2, achieved by combining like terms.
Step-by-step explanation:
The expression -6+8-3x-9x simplifies to -12x + 2. First, you should combine like terms. Negating 6 and adding 8 equals 2. Combining -3x and -9x produces a result of -12x, thereby providing the equivalent linear expression -12x + 2.
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