Evaluate
\frac{n}{2}-\frac{y}{8}-\frac{23}{4}
Factor
\frac{-y+4n-46}{8}
Graph
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\frac{n}{2}-\frac{y}{8}-\frac{3}{4}-\frac{20}{4}
Convert 5 to fraction \frac{20}{4}.
\frac{n}{2}-\frac{y}{8}+\frac{-3-20}{4}
Since -\frac{3}{4} and \frac{20}{4} have the same denominator, subtract them by subtracting their numerators.
\frac{n}{2}-\frac{y}{8}-\frac{23}{4}
Subtract 20 from -3 to get -23.
\frac{4n}{8}-\frac{y}{8}-\frac{23}{4}
To add or subtract expressions, expand them to make their denominators the same. Least common multiple of 2 and 8 is 8. Multiply \frac{n}{2} times \frac{4}{4}.
\frac{4n-y}{8}-\frac{23}{4}
Since \frac{4n}{8} and \frac{y}{8} have the same denominator, subtract them by subtracting their numerators.
\frac{4n-y}{8}-\frac{23\times 2}{8}
To add or subtract expressions, expand them to make their denominators the same. Least common multiple of 8 and 4 is 8. Multiply \frac{23}{4} times \frac{2}{2}.
\frac{4n-y-23\times 2}{8}
Since \frac{4n-y}{8} and \frac{23\times 2}{8} have the same denominator, subtract them by subtracting their numerators.
\frac{4n-y-46}{8}
Do the multiplications in 4n-y-23\times 2.
\frac{4n-y-46}{8}
Factor out \frac{1}{8}.
-y+4n-46
Consider 4n-y-6-40. Multiply and combine like terms.
\frac{-y+4n-46}{8}
Rewrite the complete factored expression.
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}