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What is AB please help

What is AB please help-example-1
User Aerion
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1 Answer

2 votes

Answer:

AB = 3x and AC = 5x+21

AB + AB = AC =

3x + 3x = 5x + 21 = 6x = 5x + 21

-5x -5x

x = 21

Now, let's plug in 21 for x in AB

AB = 3x = 3(21) = 63

User Ybdesire
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