Solve for y
y<-4
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y-8-2y>-4
Subtract 2y from both sides.
-y-8>-4
Combine y and -2y to get -y.
-y>-4+8
Add 8 to both sides.
-y>4
Add -4 and 8 to get 4.
y<-4
Divide both sides by -1. Since -1 is negative, the inequality direction is changed.
Examples
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4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
699 * 533
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
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
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