Solve for x
x=9
Graph
Share
Copied to clipboard
\frac{1}{4}x+\frac{1}{4}\left(-3\right)+\frac{1}{6}\left(2x-3\right)=4
Use the distributive property to multiply \frac{1}{4} by x-3.
\frac{1}{4}x+\frac{-3}{4}+\frac{1}{6}\left(2x-3\right)=4
Multiply \frac{1}{4} and -3 to get \frac{-3}{4}.
\frac{1}{4}x-\frac{3}{4}+\frac{1}{6}\left(2x-3\right)=4
Fraction \frac{-3}{4} can be rewritten as -\frac{3}{4} by extracting the negative sign.
\frac{1}{4}x-\frac{3}{4}+\frac{1}{6}\times 2x+\frac{1}{6}\left(-3\right)=4
Use the distributive property to multiply \frac{1}{6} by 2x-3.
\frac{1}{4}x-\frac{3}{4}+\frac{2}{6}x+\frac{1}{6}\left(-3\right)=4
Multiply \frac{1}{6} and 2 to get \frac{2}{6}.
\frac{1}{4}x-\frac{3}{4}+\frac{1}{3}x+\frac{1}{6}\left(-3\right)=4
Reduce the fraction \frac{2}{6} to lowest terms by extracting and canceling out 2.
\frac{1}{4}x-\frac{3}{4}+\frac{1}{3}x+\frac{-3}{6}=4
Multiply \frac{1}{6} and -3 to get \frac{-3}{6}.
\frac{1}{4}x-\frac{3}{4}+\frac{1}{3}x-\frac{1}{2}=4
Reduce the fraction \frac{-3}{6} to lowest terms by extracting and canceling out 3.
\frac{7}{12}x-\frac{3}{4}-\frac{1}{2}=4
Combine \frac{1}{4}x and \frac{1}{3}x to get \frac{7}{12}x.
\frac{7}{12}x-\frac{3}{4}-\frac{2}{4}=4
Least common multiple of 4 and 2 is 4. Convert -\frac{3}{4} and \frac{1}{2} to fractions with denominator 4.
\frac{7}{12}x+\frac{-3-2}{4}=4
Since -\frac{3}{4} and \frac{2}{4} have the same denominator, subtract them by subtracting their numerators.
\frac{7}{12}x-\frac{5}{4}=4
Subtract 2 from -3 to get -5.
\frac{7}{12}x=4+\frac{5}{4}
Add \frac{5}{4} to both sides.
\frac{7}{12}x=\frac{16}{4}+\frac{5}{4}
Convert 4 to fraction \frac{16}{4}.
\frac{7}{12}x=\frac{16+5}{4}
Since \frac{16}{4} and \frac{5}{4} have the same denominator, add them by adding their numerators.
\frac{7}{12}x=\frac{21}{4}
Add 16 and 5 to get 21.
x=\frac{21}{4}\times \frac{12}{7}
Multiply both sides by \frac{12}{7}, the reciprocal of \frac{7}{12}.
x=\frac{21\times 12}{4\times 7}
Multiply \frac{21}{4} times \frac{12}{7} by multiplying numerator times numerator and denominator times denominator.
x=\frac{252}{28}
Do the multiplications in the fraction \frac{21\times 12}{4\times 7}.
x=9
Divide 252 by 28 to get 9.
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}