Solve for x
x=2
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x+8x=18
Multiply both sides of the equation by 2.
9x=18
Combine x and 8x to get 9x.
x=\frac{18}{9}
Divide both sides by 9.
x=2
Divide 18 by 9 to get 2.
Examples
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Matrix
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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Limits
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