Solve for y
y = \frac{41}{5} = 8\frac{1}{5} = 8.2
Assign y
y≔\frac{41}{5}
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y=\frac{4\times 4}{5}+5
Express 4\times \frac{4}{5} as a single fraction.
y=\frac{16}{5}+5
Multiply 4 and 4 to get 16.
y=\frac{16}{5}+\frac{25}{5}
Convert 5 to fraction \frac{25}{5}.
y=\frac{16+25}{5}
Since \frac{16}{5} and \frac{25}{5} have the same denominator, add them by adding their numerators.
y=\frac{41}{5}
Add 16 and 25 to get 41.
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}