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Find BC if BC=x+2, AB=2x-6, and AC=17.
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Find BC if BC=x+2, AB=2x-6, and AC=17.

User PenAndPapers
by
8.5k points

1 Answer

3 votes

Answer:

BC = 9

Explanation:

Assuming this is a straight line

AB + BC = AC

2x-6 + x+2 = 17

Combine like terms

3x -4 = 17

Add 4 to each side

3x-4+4 = 17+4

3x = 21

Divide each side by 3

3x/3 =21/3

x =7

We want to find BC

BC =x+2

=7+2

=9

User Arti Berde
by
7.4k points
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