Solve for x
x = \frac{2044}{5} = 408\frac{4}{5} = 408.8
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\frac{428-x}{16}=\frac{30}{25}
Divide both sides by 25.
\frac{428-x}{16}=\frac{6}{5}
Reduce the fraction \frac{30}{25} to lowest terms by extracting and canceling out 5.
428-x=\frac{6}{5}\times 16
Multiply both sides by 16.
428-x=\frac{6\times 16}{5}
Express \frac{6}{5}\times 16 as a single fraction.
428-x=\frac{96}{5}
Multiply 6 and 16 to get 96.
-x=\frac{96}{5}-428
Subtract 428 from both sides.
-x=\frac{96}{5}-\frac{2140}{5}
Convert 428 to fraction \frac{2140}{5}.
-x=\frac{96-2140}{5}
Since \frac{96}{5} and \frac{2140}{5} have the same denominator, subtract them by subtracting their numerators.
-x=-\frac{2044}{5}
Subtract 2140 from 96 to get -2044.
x=\frac{2044}{5}
Multiply both sides by -1.
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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
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}