Solve for y
y=\frac{4}{7}\approx 0.571428571
Assign y
y≔\frac{4}{7}
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y=-\frac{2}{7}\left(-2\right)
Fraction \frac{-2}{7} can be rewritten as -\frac{2}{7} by extracting the negative sign.
y=\frac{-2\left(-2\right)}{7}
Express -\frac{2}{7}\left(-2\right) as a single fraction.
y=\frac{4}{7}
Multiply -2 and -2 to get 4.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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Linear equation
y = 3x + 4
Arithmetic
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Matrix
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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
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Limits
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