Solve for x
x>9
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7x>72-9
Subtract 9 from both sides.
7x>63
Subtract 9 from 72 to get 63.
x>\frac{63}{7}
Divide both sides by 7. Since 7 is positive, the inequality direction remains the same.
x>9
Divide 63 by 7 to get 9.
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Matrix
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Simultaneous equation
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Limits
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