4 ( x - 13,5 ) = x
Solve for x
x=18
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4x-54=x
Use the distributive property to multiply 4 by x-13,5.
4x-54-x=0
Subtract x from both sides.
3x-54=0
Combine 4x and -x to get 3x.
3x=54
Add 54 to both sides. Anything plus zero gives itself.
x=\frac{54}{3}
Divide both sides by 3.
x=18
Divide 54 by 3 to get 18.
Examples
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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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