Solve for x
x = \frac{13}{10} = 1\frac{3}{10} = 1.3
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x=\frac{1}{2}+\frac{4}{5}
Add \frac{4}{5} to both sides.
x=\frac{5}{10}+\frac{8}{10}
Least common multiple of 2 and 5 is 10. Convert \frac{1}{2} and \frac{4}{5} to fractions with denominator 10.
x=\frac{5+8}{10}
Since \frac{5}{10} and \frac{8}{10} have the same denominator, add them by adding their numerators.
x=\frac{13}{10}
Add 5 and 8 to get 13.
Examples
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y = 3x + 4
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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
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Limits
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