Solve for x
x=15
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4x=5x-15
Use the distributive property to multiply 5 by x-3.
4x-5x=-15
Subtract 5x from both sides.
-x=-15
Combine 4x and -5x to get -x.
x=15
Multiply both sides by -1.
Examples
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Matrix
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Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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