Solve for x
x=9
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81-x=8\times 9
Multiply both sides by 9.
81-x=72
Multiply 8 and 9 to get 72.
-x=72-81
Subtract 81 from both sides.
-x=-9
Subtract 81 from 72 to get -9.
x=9
Multiply both sides by -1.
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Matrix
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Simultaneous equation
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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Limits
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