Answer :
Answer:
12x -6
Step-by-step explanation:
Assuming these are segments on the same line with B between A and C, the segment addition postulate says ...
... AC = AB + BC
... AC = (5x +3) + (7x -9)
... AC = x(5+7) +(3-9)
... AC = 12x -6
Answer:
12x -6
Step-by-step explanation:
Assuming these are segments on the same line with B between A and C, the segment addition postulate says ...
... AC = AB + BC
... AC = (5x +3) + (7x -9)
... AC = x(5+7) +(3-9)
... AC = 12x -6