Solve for x
x=2
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\frac{10}{3}x-4-\frac{8}{3}=0
Combine 5x and -\frac{5}{3}x to get \frac{10}{3}x.
\frac{10}{3}x-\frac{12}{3}-\frac{8}{3}=0
Convert -4 to fraction -\frac{12}{3}.
\frac{10}{3}x+\frac{-12-8}{3}=0
Since -\frac{12}{3} and \frac{8}{3} have the same denominator, subtract them by subtracting their numerators.
\frac{10}{3}x-\frac{20}{3}=0
Subtract 8 from -12 to get -20.
\frac{10}{3}x=\frac{20}{3}
Add \frac{20}{3} to both sides. Anything plus zero gives itself.
x=\frac{20}{3}\times \frac{3}{10}
Multiply both sides by \frac{3}{10}, the reciprocal of \frac{10}{3}.
x=\frac{20\times 3}{3\times 10}
Multiply \frac{20}{3} times \frac{3}{10} by multiplying numerator times numerator and denominator times denominator.
x=\frac{20}{10}
Cancel out 3 in both numerator and denominator.
x=2
Divide 20 by 10 to get 2.
Examples
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y = 3x + 4
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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}