If LM=3x, and MN=2x+2, and LN=42, what is LM?

I don't know where to start, so just a little bit of help would be appreciated!

Thanks XD
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1 Answer

If LM=3x, and MN=2x+2, and LN=42, what is LM?

We have a straight line, LMN, with 3 points on it, L, M, and N.

We are told that the length LM = 3x and that the length MN = 2x + 2.

Adding the length LM to to MN gives us the length of LN. i.e.,

3x + (2x + 2) = 42

5x + 2 = 42

5x = 40

x = 8

3x = 24

Therefore, the length of LM is: 24

by Level 11 User (81.5k points)

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