Points A, B, C, and D are collinear and

Mathematics

1 answer:

Zanzabum2 years ago

4 0

x=-11

we know that

Points A,B,C,and D are collinear and positioned in that order

AD=AB+BC+CD -----> by addition segment postulate

we have

AB=2x+30

AD=x=32

substitute the given values and solve for x

x+32 = (2x+43)

Group terms that contain the same variable

2x-x=32-43

x=-11

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