Solve for y
y = \frac{33}{5} = 6\frac{3}{5} = 6.6
Assign y
y≔\frac{33}{5}
Graph
Share
Copied to clipboard
y=1-\frac{7\left(-4\right)}{5}
Express 7\left(-\frac{4}{5}\right) as a single fraction.
y=1-\frac{-28}{5}
Multiply 7 and -4 to get -28.
y=1-\left(-\frac{28}{5}\right)
Fraction \frac{-28}{5} can be rewritten as -\frac{28}{5} by extracting the negative sign.
y=1+\frac{28}{5}
The opposite of -\frac{28}{5} is \frac{28}{5}.
y=\frac{5}{5}+\frac{28}{5}
Convert 1 to fraction \frac{5}{5}.
y=\frac{5+28}{5}
Since \frac{5}{5} and \frac{28}{5} have the same denominator, add them by adding their numerators.
y=\frac{33}{5}
Add 5 and 28 to get 33.
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}