Solve for L
L=\frac{x+6}{3}
Solve for x
x=3\left(L-2\right)
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x=3L-6
Multiply both sides of the equation by 3.
3L-6=x
Swap sides so that all variable terms are on the left hand side.
3L=x+6
Add 6 to both sides.
\frac{3L}{3}=\frac{x+6}{3}
Divide both sides by 3.
L=\frac{x+6}{3}
Dividing by 3 undoes the multiplication by 3.
L=\frac{x}{3}+2
Divide x+6 by 3.
x=3L-6
Multiply both sides of the equation by 3.
Examples
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Simultaneous equation
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Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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