Solve for x
x = \frac{4216}{3} = 1405\frac{1}{3} \approx 1405.333333333
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\frac{13}{20}x=\frac{85}{100}\left(2480-x\right)
Reduce the fraction \frac{65}{100} to lowest terms by extracting and canceling out 5.
\frac{13}{20}x=\frac{17}{20}\left(2480-x\right)
Reduce the fraction \frac{85}{100} to lowest terms by extracting and canceling out 5.
\frac{13}{20}x=\frac{17}{20}\times 2480+\frac{17}{20}\left(-1\right)x
Use the distributive property to multiply \frac{17}{20} by 2480-x.
\frac{13}{20}x=\frac{17\times 2480}{20}+\frac{17}{20}\left(-1\right)x
Express \frac{17}{20}\times 2480 as a single fraction.
\frac{13}{20}x=\frac{42160}{20}+\frac{17}{20}\left(-1\right)x
Multiply 17 and 2480 to get 42160.
\frac{13}{20}x=2108+\frac{17}{20}\left(-1\right)x
Divide 42160 by 20 to get 2108.
\frac{13}{20}x=2108-\frac{17}{20}x
Multiply \frac{17}{20} and -1 to get -\frac{17}{20}.
\frac{13}{20}x+\frac{17}{20}x=2108
Add \frac{17}{20}x to both sides.
\frac{3}{2}x=2108
Combine \frac{13}{20}x and \frac{17}{20}x to get \frac{3}{2}x.
x=2108\times \frac{2}{3}
Multiply both sides by \frac{2}{3}, the reciprocal of \frac{3}{2}.
x=\frac{2108\times 2}{3}
Express 2108\times \frac{2}{3} as a single fraction.
x=\frac{4216}{3}
Multiply 2108 and 2 to get 4216.
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y = 3x + 4
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Matrix
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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}