Answer:
BD = 88
Explanation:
If BD = 7x – 10, BC = 4x – 29, and CD = 5x – 9, find BD.
BC + CD = BD
4x – 29 + 5x – 9 = 7x – 10
combine similar terms:
4x + 5x - 7x = 29 + 9 - 10
2x = 28
x = 28/2
x = 14
find BD: plugin x-14 into 7x – 10
BD = 7x – 10
BD = 7(14) - 10
BD = 98 - 10
BD = 88