Solve for x
x\in \left(-\infty,0\right)\cup \left(\frac{1}{2},\infty\right)
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\frac{3}{x}+\frac{x}{x}<7
To add or subtract expressions, expand them to make their denominators the same. Multiply 1 times \frac{x}{x}.
\frac{3+x}{x}<7
Since \frac{3}{x} and \frac{x}{x} have the same denominator, add them by adding their numerators.
3\times \frac{1}{x}\left(-2x+1\right)<0
Factor out x.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
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Matrix
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Simultaneous equation
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Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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