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lana66690 [7]
3 years ago
10

What is the value of x?

Mathematics
1 answer:
SVETLANKA909090 [29]3 years ago
8 0
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.
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