Solve for k
k=9
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k+3=12
Multiply both sides of the equation by 3.
k=12-3
Subtract 3 from both sides.
k=9
Subtract 3 from 12 to get 9.
Examples
Quadratic equation
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Linear equation
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Matrix
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Simultaneous equation
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Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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