Solve for x
x<-7
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5x+12-3x<-2
Subtract 3x from both sides.
2x+12<-2
Combine 5x and -3x to get 2x.
2x<-2-12
Subtract 12 from both sides.
2x<-14
Subtract 12 from -2 to get -14.
x<\frac{-14}{2}
Divide both sides by 2. Since 2 is positive, the inequality direction remains the same.
x<-7
Divide -14 by 2 to get -7.
Examples
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4 \sin \theta \cos \theta = 2 \sin \theta
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y = 3x + 4
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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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