Solve for x
x = \frac{7}{5} = 1\frac{2}{5} = 1.4
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4\left(x+0\right)+x=7
Multiply 0 and 5 to get 0.
4x+x=7
Anything plus zero gives itself.
5x=7
Combine 4x and x to get 5x.
x=\frac{7}{5}
Divide both sides by 5.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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Linear equation
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.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
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