Solve for x
x\leq -3
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4x\leq -4-8
Subtract 8 from both sides.
4x\leq -12
Subtract 8 from -4 to get -12.
x\leq \frac{-12}{4}
Divide both sides by 4. Since 4 is positive, the inequality direction remains the same.
x\leq -3
Divide -12 by 4 to get -3.
Examples
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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.
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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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