3x - 8 cm
x = ___ cm

Answer:
Step-by-step explanation:Given that 3x - 8 cm represents a length, we need to find the value of x.
We have:
3x−8=length in cm3x−8=length in cm
To find x, we solve for it:
3x=length in cm+83x=length in cm+8
x=length in cm+83x=3length in cm+8
So, x is equal to the length in centimeters plus 8, divided by 3.
To express 3x - 8 cm in terms of x, we just substitute the expression we found for x:
3x−8=3(length in cm+83)−83x−8=3(3length in cm+8)−8
3x−8=length in cm+8−83x−8=length in cm+8−8
3x−8=length in cm3x−8=length in cm
Therefore:
x=length in cm+83x=3length in cm+8
3x−8=length in cm3x−8=length in cm
So, the value of x is length in cm+833length in cm+8 and 3x - 8 cm is the same as the length in cm.