20
X/10 * 15/25 = 6 x=6
57
The base of log, if unspecified, is taken to be 10 so you would be finding the value of the logarithm of 5 to the base 10.This is the value x, such that 10^x = 5.
10 8 * 5.7
If you mean: 5x = 10 then the value of x is 2
The value of x works out as 10
5.7 x 10 = 57
10
10
10
x + 10 = 19 x = 19 - 10 x = 9
The value of 5.7 x 10 to the 8th power is 570,000,000
The value of 4.2 X 10 to -3 power is 0.0042
It is 10.
If: 12+x = 10 then the value of x is -2
If 3x = x + 10 then 2x = 10 and x = 5