Solve for a
a=\frac{b+c}{2}
Solve for b
b=2a-c
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2a=c+b
Add b to both sides.
2a=b+c
The equation is in standard form.
\frac{2a}{2}=\frac{b+c}{2}
Divide both sides by 2.
a=\frac{b+c}{2}
Dividing by 2 undoes the multiplication by 2.
-b=c-2a
Subtract 2a from both sides.
\frac{-b}{-1}=\frac{c-2a}{-1}
Divide both sides by -1.
b=\frac{c-2a}{-1}
Dividing by -1 undoes the multiplication by -1.
b=2a-c
Divide c-2a by -1.
Examples
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Matrix
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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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