5'1" is a perfectly good - although out-of-date way of doing it.
The absolute value of 51 is 51.
18 + X = 51. Then solve for X by subtracting 18 from both sides
The value is 51.
51 inches = 4ft, 3 in
51 = LI
51/100
The recommended height range for a 51 cm bike frame is typically between 5'5" to 5'9".
51/25 = 2.04
0.51 is 51 hundredths as a decimal.
51 hundred equals 5,100
The recommended bike height for a person who is 51 cm tall is typically around 12-14 inches.
If you mean 7b-2 = -51 then the value of b is -7