Solve for n
n<42
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n+12<27\times 2
Multiply both sides by 2. Since 2 is positive, the inequality direction remains the same.
n+12<54
Multiply 27 and 2 to get 54.
n<54-12
Subtract 12 from both sides.
n<42
Subtract 12 from 54 to get 42.
Examples
Quadratic equation
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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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