Solve for x
x\leq 22
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2x+3+2x\leq 91
Combine x and x to get 2x.
4x+3\leq 91
Combine 2x and 2x to get 4x.
4x\leq 91-3
Subtract 3 from both sides.
4x\leq 88
Subtract 3 from 91 to get 88.
x\leq \frac{88}{4}
Divide both sides by 4. Since 4 is positive, the inequality direction remains the same.
x\leq 22
Divide 88 by 4 to get 22.
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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