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16-12-2019
Mathematics

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-2x – 9x = -12(x +5) + 8(x – 10)

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PollyP52 PollyP52

16-12-2019

Answer:

x = 20.

Step-by-step explanation:

-2x – 9x = -12(x +5) + 8(x – 10)

-2x – 9x = -12x -60 + 8x – 80

-2x - 9x + 12x - 8x = -140

-7x = -140

x = 20.

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