Solve for a
a\geq 15
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a-5\geq \frac{-30}{-3}
Divide both sides by -3. Since -3 is negative, the inequality direction is changed.
a-5\geq 10
Divide -30 by -3 to get 10.
a\geq 10+5
Add 5 to both sides.
a\geq 15
Add 10 and 5 to get 15.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
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Linear equation
y = 3x + 4
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Matrix
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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