Solve for E
E=2\left(A-Q+S\right)
Solve for A
A=\frac{E}{2}+Q-S
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A+S-\frac{E}{2}=Q
Swap sides so that all variable terms are on the left hand side.
S-\frac{E}{2}=Q-A
Subtract A from both sides.
-\frac{E}{2}=Q-A-S
Subtract S from both sides.
-E=2Q-2A-2S
Multiply both sides of the equation by 2.
-E=-2A+2Q-2S
The equation is in standard form.
\frac{-E}{-1}=\frac{-2A+2Q-2S}{-1}
Divide both sides by -1.
E=\frac{-2A+2Q-2S}{-1}
Dividing by -1 undoes the multiplication by -1.
E=2A-2Q+2S
Divide 2Q-2A-2S by -1.
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