Solve for x
x=5
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12x-3x=45
Subtract 3x from both sides.
9x=45
Combine 12x and -3x to get 9x.
x=\frac{45}{9}
Divide both sides by 9.
x=5
Divide 45 by 9 to get 5.
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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