Solve for y
y=-4
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-3y+y=8
Add y to both sides.
-2y=8
Combine -3y and y to get -2y.
y=\frac{8}{-2}
Divide both sides by -2.
y=-4
Divide 8 by -2 to get -4.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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Linear equation
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Matrix
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Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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Limits
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