Solve for x
x<-3
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4-x-3x>16
Subtract 3x from both sides.
4-4x>16
Combine -x and -3x to get -4x.
-4x>16-4
Subtract 4 from both sides.
-4x>12
Subtract 4 from 16 to get 12.
x<\frac{12}{-4}
Divide both sides by -4. Since -4 is negative, the inequality direction is changed.
x<-3
Divide 12 by -4 to get -3.
Examples
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Matrix
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Simultaneous equation
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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Limits
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