Solve for x
x=61
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x+9=70
Calculate 3 to the power of 2 and get 9.
x=70-9
Subtract 9 from both sides.
x=61
Subtract 9 from 70 to get 61.
Examples
Quadratic equation
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4 \sin \theta \cos \theta = 2 \sin \theta
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y = 3x + 4
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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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