Solve for x
x>-3
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-3x<12-3
Subtract 3 from both sides.
-3x<9
Subtract 3 from 12 to get 9.
x>\frac{9}{-3}
Divide both sides by -3. Since -3 is negative, the inequality direction is changed.
x>-3
Divide 9 by -3 to get -3.
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Matrix
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Simultaneous equation
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Limits
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