Question

Point M is the midpoint of AB. AM=3x+3 and AB=8x-6. What is the length of AM

Answer 1

AM=21

AM=3x+3
AB=8x-6
AB=2AM
AM=AB/2
AM=(8x-6)/2
AM=4x-3
3x+3=4x-3
4x-3=3+3

AM=3x+3
AM=3(6)+3
AM=18+3
AM=21