Question

Please can you explain how you got the answers! Thanks

Answer 1

KM - KL = LM
3x + 1.5 - (x + 0.5) = 3x - 2
3x + 1.5 - x - 0.5 = 3x - 2
2x + 1 = 3x - 2
1 + 2 = 3x - 2x
3 = x

so KM = 3(3) + 1.5 = 9 + 1.5 = 10.5
KL = x + 0.5 = 3 + 0.5 = 3.5
LM = 3x - 2 = 3(3) - 2 = 9 - 2 = 7 <===

Answer 2

First you have to find the measurement of the entire line,which will be equal x, than plug in in the equation between L and M