Solve for x
x<-4
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-4x>7+9
Add 9 to both sides.
-4x>16
Add 7 and 9 to get 16.
x<\frac{16}{-4}
Divide both sides by -4. Since -4 is negative, the inequality direction is changed.
x<-4
Divide 16 by -4 to get -4.
Examples
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Matrix
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Simultaneous equation
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Limits
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