\frac { x + 7.5 } { 100.39 } = 74.39 \%
Solve for x
x=67.180121
Graph
Share
Copied to clipboard
\frac{x+7.5}{100.39}=\frac{7439}{10000}
Expand \frac{74.39}{100} by multiplying both numerator and the denominator by 100.
\frac{x}{100.39}+\frac{7.5}{100.39}=\frac{7439}{10000}
Divide each term of x+7.5 by 100.39 to get \frac{x}{100.39}+\frac{7.5}{100.39}.
\frac{x}{100.39}+\frac{750}{10039}=\frac{7439}{10000}
Expand \frac{7.5}{100.39} by multiplying both numerator and the denominator by 100.
\frac{x}{100.39}=\frac{7439}{10000}-\frac{750}{10039}
Subtract \frac{750}{10039} from both sides.
\frac{x}{100.39}=\frac{74680121}{100390000}-\frac{7500000}{100390000}
Least common multiple of 10000 and 10039 is 100390000. Convert \frac{7439}{10000} and \frac{750}{10039} to fractions with denominator 100390000.
\frac{x}{100.39}=\frac{74680121-7500000}{100390000}
Since \frac{74680121}{100390000} and \frac{7500000}{100390000} have the same denominator, subtract them by subtracting their numerators.
\frac{x}{100.39}=\frac{67180121}{100390000}
Subtract 7500000 from 74680121 to get 67180121.
x=\frac{67180121}{100390000}\times 100.39
Multiply both sides by 100.39.
x=\frac{67180121}{100390000}\times \frac{10039}{100}
Convert decimal number 100.39 to fraction \frac{10039}{100}.
x=\frac{67180121\times 10039}{100390000\times 100}
Multiply \frac{67180121}{100390000} times \frac{10039}{100} by multiplying numerator times numerator and denominator times denominator.
x=\frac{674421234719}{10039000000}
Do the multiplications in the fraction \frac{67180121\times 10039}{100390000\times 100}.
x=\frac{67180121}{1000000}
Reduce the fraction \frac{674421234719}{10039000000} to lowest terms by extracting and canceling out 10039.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
699 * 533
Matrix
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}