Solve for x
x=-4
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x-2=\frac{12}{-2}
Divide both sides by -2.
x-2=-6
Divide 12 by -2 to get -6.
x=-6+2
Add 2 to both sides.
x=-4
Add -6 and 2 to get -4.
Examples
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Linear equation
y = 3x + 4
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Matrix
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\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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Limits
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