А = 35 см
В = х см
С = (х + 2) - 3 см

Substitute the values of A, B, and C into the equation:

35 = х + (х + 2) - 3

Combine like terms:

35 = 2х - 1

Add 1 to both sides:

36 = 2х

Divide by 2:

х = 18

Now calculate the values of A, B, and C:

A = 35 сm
B = 18 сm
C = (18 + 2) - 3 = 17 сm

Therefore, the values of A, B, and C are A = 35 cm, B = 18 cm, and C = 17 cm.