Solve for x
x=\frac{2}{21}\approx 0.095238095
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3x=\frac{2}{7}
Combine 5x and -2x to get 3x.
x=\frac{\frac{2}{7}}{3}
Divide both sides by 3.
x=\frac{2}{7\times 3}
Express \frac{\frac{2}{7}}{3} as a single fraction.
x=\frac{2}{21}
Multiply 7 and 3 to get 21.
Examples
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y = 3x + 4
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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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