Solve for x
x=\frac{5}{7}\approx 0.714285714
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7x-5=0
Combine 4x and 3x to get 7x.
7x=5
Add 5 to both sides. Anything plus zero gives itself.
x=\frac{5}{7}
Divide both sides by 7.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
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Linear equation
y = 3x + 4
Arithmetic
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Matrix
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Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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