Solve for x
x = \frac{9}{7} = 1\frac{2}{7} \approx 1.285714286
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7x=5+4
Add 4 to both sides.
7x=9
Add 5 and 4 to get 9.
x=\frac{9}{7}
Divide both sides by 7.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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Linear equation
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Matrix
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Simultaneous equation
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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Limits
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