Solve for x
x=\frac{4-f_{1}}{3}
Solve for f_1
f_{1}=4-3x
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4-3x=f_{1}
Swap sides so that all variable terms are on the left hand side.
-3x=f_{1}-4
Subtract 4 from both sides.
\frac{-3x}{-3}=\frac{f_{1}-4}{-3}
Divide both sides by -3.
x=\frac{f_{1}-4}{-3}
Dividing by -3 undoes the multiplication by -3.
x=\frac{4-f_{1}}{3}
Divide f_{1}-4 by -3.
Examples
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y = 3x + 4
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Matrix
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Simultaneous equation
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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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