Solve for a
a=4-b-C
Solve for C
C=4-b-a
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4-a-b=C
Swap sides so that all variable terms are on the left hand side.
-a-b=C-4
Subtract 4 from both sides.
-a=C-4+b
Add b to both sides.
-a=C+b-4
The equation is in standard form.
\frac{-a}{-1}=\frac{C+b-4}{-1}
Divide both sides by -1.
a=\frac{C+b-4}{-1}
Dividing by -1 undoes the multiplication by -1.
a=4-b-C
Divide C-4+b by -1.
Examples
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y = 3x + 4
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Matrix
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\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
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