Solve for y
y\geq 25
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4y\geq 23+77
Add 77 to both sides.
4y\geq 100
Add 23 and 77 to get 100.
y\geq \frac{100}{4}
Divide both sides by 4. Since 4 is positive, the inequality direction remains the same.
y\geq 25
Divide 100 by 4 to get 25.
Examples
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Linear equation
y = 3x + 4
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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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