Solve for x
x=5
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x+2=\frac{21}{3}
Divide both sides by 3.
x+2=7
Divide 21 by 3 to get 7.
x=7-2
Subtract 2 from both sides.
x=5
Subtract 2 from 7 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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