Solve for u
u\geq 2
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2u\geq 8-4
Subtract 4 from both sides.
2u\geq 4
Subtract 4 from 8 to get 4.
u\geq \frac{4}{2}
Divide both sides by 2. Since 2 is positive, the inequality direction remains the same.
u\geq 2
Divide 4 by 2 to get 2.
Examples
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4 \sin \theta \cos \theta = 2 \sin \theta
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Matrix
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Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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