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To solve this we simply plug in the value of x where any x's are found in the equation.

1) 27x - 27; x = -9

2) 27(-9) - 27

3) -243 - 27 = -270

So, 27x - 27 = -270 if x = -9.

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Q: What is 27x - 27 if X equals -9?
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