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ZB is 3x-5 BA is x+3 B is the midpoint of ZA. Find the length of ZA A. 7 B. 9 C. 11 D. 14
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ZB is 3x-5 BA is x+3

B is the midpoint of ZA. Find the length of ZA
A. 7
B. 9
C. 11
D. 14

User Siddy Hacks
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5.8k points

1 Answer

6 votes
If B is the midpoint of ZA, then ZB = BA
3x-5 = x+3
3x - x = 3 + 5
2x = 8
x = 8/2
x = 4

ZA = ZB + BA
= 3x-5 + x+3
= 3*4 - 5 + 4 + 3
= 12 - 5 + 7
= 14

Answer: D. 14
User Zjuhasz
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