Solve for x
x=7
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5+6x=5+33+\sqrt{81}
Calculate the square root of 25 and get 5.
5+6x=38+\sqrt{81}
Add 5 and 33 to get 38.
5+6x=38+9
Calculate the square root of 81 and get 9.
5+6x=47
Add 38 and 9 to get 47.
6x=47-5
Subtract 5 from both sides.
6x=42
Subtract 5 from 47 to get 42.
x=\frac{42}{6}
Divide both sides by 6.
x=7
Divide 42 by 6 to get 7.
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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.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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