4 years ago

13. If B is the midpoint of AC and AC = 8x -20, find BC. AB= 3x-1

Mathematics

1 answer:

maks197457 [2]4 years ago

3 0

Answer:

$\Huge \boxed{5x - 19}$

$\rule[225]{225}{2}$

Step-by-step explanation:

A ——— B ——— C

AC = 8x - 20

AB = 3x - 1

BC = AC - AB

BC = (8x - 20) - (3x - 1)

Distributing negative sign.

BC = 8x - 20 - 3x + 1

Combining like terms.

BC = 5x - 19

$\rule[225]{225}{2}$

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13. If B is the midpoint of AC and AC = 8x -20, find BC. AB= 3x-1​

13. If B is the midpoint of AC and AC = 8x -20, find BC. AB= 3x-1