Solve for x
x\geq -3
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2x-7-4x\leq -1
Subtract 4x from both sides.
-2x-7\leq -1
Combine 2x and -4x to get -2x.
-2x\leq -1+7
Add 7 to both sides.
-2x\leq 6
Add -1 and 7 to get 6.
x\geq \frac{6}{-2}
Divide both sides by -2. Since -2 is negative, the inequality direction is changed.
x\geq -3
Divide 6 by -2 to get -3.
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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
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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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