What is the value of x?

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asked Jul 16, 2019 143k views

1 Answer

Est · Answer 1 · 2019-07-21T01:53:51+0000

The rule for secants tells you
EC·ED = EB·EA
(x+4)(x+5) = (x+1)(x+12)
9x+20 = 13x+12 . . . . . . simplify, subtract x²
8 = 4x . . . . . . . . . . . . . . add -12-9x
2 = x

The value of x is 2.

What is the value of x?

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