Solve for x
x=4
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x-1+3=3x-6
Multiply both sides of the equation by 3.
x+2=3x-6
Add -1 and 3 to get 2.
x+2-3x=-6
Subtract 3x from both sides.
-2x+2=-6
Combine x and -3x to get -2x.
-2x=-6-2
Subtract 2 from both sides.
-2x=-8
Subtract 2 from -6 to get -8.
x=\frac{-8}{-2}
Divide both sides by -2.
x=4
Divide -8 by -2 to get 4.
Examples
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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 ) }
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Limits
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