Solve for a
a=\frac{17-y}{2}
Solve for y
y=17-2a
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17-2a=y
Swap sides so that all variable terms are on the left hand side.
-2a=y-17
Subtract 17 from both sides.
\frac{-2a}{-2}=\frac{y-17}{-2}
Divide both sides by -2.
a=\frac{y-17}{-2}
Dividing by -2 undoes the multiplication by -2.
a=\frac{17-y}{2}
Divide y-17 by -2.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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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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