a number decreased by 7%
X-7/100 ORX-0.07Since we don't know the number we need a variable which can be any alphabet so I chose "X". For example if it were 7 decreased by 7 percent, it would be equal to:7 - 7/100=6.93
93 x--- = ------100 Full Number**************93(full number) = 100xThen divide by 100**************Here is an Example:93(10) = 100x930 = 100xDivide each side by 1009.3P.SThe reason the answer isn't 7 is because it's not 70%
