Evaluate
\frac{76x}{15}-\frac{7y}{8}
Expand
\frac{76x}{15}-\frac{7y}{8}
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\frac{25+2}{5}x-\frac{1}{3}\left(x+\frac{3}{4}y\right)-y+\frac{3}{8}y
Multiply 5 and 5 to get 25.
\frac{27}{5}x-\frac{1}{3}\left(x+\frac{3}{4}y\right)-y+\frac{3}{8}y
Add 25 and 2 to get 27.
\frac{27}{5}x-\frac{1}{3}x-\frac{1}{3}\times \frac{3}{4}y-y+\frac{3}{8}y
Use the distributive property to multiply -\frac{1}{3} by x+\frac{3}{4}y.
\frac{27}{5}x-\frac{1}{3}x+\frac{-3}{3\times 4}y-y+\frac{3}{8}y
Multiply -\frac{1}{3} times \frac{3}{4} by multiplying numerator times numerator and denominator times denominator.
\frac{27}{5}x-\frac{1}{3}x+\frac{-1}{4}y-y+\frac{3}{8}y
Cancel out 3 in both numerator and denominator.
\frac{27}{5}x-\frac{1}{3}x-\frac{1}{4}y-y+\frac{3}{8}y
Fraction \frac{-1}{4} can be rewritten as -\frac{1}{4} by extracting the negative sign.
\frac{76}{15}x-\frac{1}{4}y-y+\frac{3}{8}y
Combine \frac{27}{5}x and -\frac{1}{3}x to get \frac{76}{15}x.
\frac{76}{15}x-\frac{5}{4}y+\frac{3}{8}y
Combine -\frac{1}{4}y and -y to get -\frac{5}{4}y.
\frac{76}{15}x-\frac{7}{8}y
Combine -\frac{5}{4}y and \frac{3}{8}y to get -\frac{7}{8}y.
\frac{25+2}{5}x-\frac{1}{3}\left(x+\frac{3}{4}y\right)-y+\frac{3}{8}y
Multiply 5 and 5 to get 25.
\frac{27}{5}x-\frac{1}{3}\left(x+\frac{3}{4}y\right)-y+\frac{3}{8}y
Add 25 and 2 to get 27.
\frac{27}{5}x-\frac{1}{3}x-\frac{1}{3}\times \frac{3}{4}y-y+\frac{3}{8}y
Use the distributive property to multiply -\frac{1}{3} by x+\frac{3}{4}y.
\frac{27}{5}x-\frac{1}{3}x+\frac{-3}{3\times 4}y-y+\frac{3}{8}y
Multiply -\frac{1}{3} times \frac{3}{4} by multiplying numerator times numerator and denominator times denominator.
\frac{27}{5}x-\frac{1}{3}x+\frac{-1}{4}y-y+\frac{3}{8}y
Cancel out 3 in both numerator and denominator.
\frac{27}{5}x-\frac{1}{3}x-\frac{1}{4}y-y+\frac{3}{8}y
Fraction \frac{-1}{4} can be rewritten as -\frac{1}{4} by extracting the negative sign.
\frac{76}{15}x-\frac{1}{4}y-y+\frac{3}{8}y
Combine \frac{27}{5}x and -\frac{1}{3}x to get \frac{76}{15}x.
\frac{76}{15}x-\frac{5}{4}y+\frac{3}{8}y
Combine -\frac{1}{4}y and -y to get -\frac{5}{4}y.
\frac{76}{15}x-\frac{7}{8}y
Combine -\frac{5}{4}y and \frac{3}{8}y to get -\frac{7}{8}y.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
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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}