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31-08-2021
Mathematics

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31-08-2021

LM + MN = LN

x + 7 + 3x + 20 = 6x - 5

4x + 27 6x - 5

4x - 6x-27-5

-2x = -32

x = -32: (-2)

x = 16

Therefore

MN = 3x + 20 = 3 16+ 2048 + 20 = 68 Answer: MN = 68.

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