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zvonat [6]
3 years ago
5

If k is the midpoint of hj and hk =x+6 and hj =4x-6 then What does kj equal

Mathematics
1 answer:
leva [86]3 years ago
4 0
Given: k= midpoint
hk=x+6
hj=4x-6

Remember midpoint cuts the segment hj in equal parts that means hk=kj and hk+kj=hj
hk+hk=hj
2hk=hj

2hk=hj
2 (x+6)=(4x-6)
2x+12=4x-6
2x-2x+12=4x-2x-6
12=2x-6
12+6=2x-6+6
18=2x
18/2=2x/2
9=x

hk=kj=x+6=(9)+6=15
kj=15
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