Solve for x_1
x_{1}=3-e\approx 0.281718172
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3-x_{1}=e
Swap sides so that all variable terms are on the left hand side.
-x_{1}=e-3
Subtract 3 from both sides.
\frac{-x_{1}}{-1}=\frac{e-3}{-1}
Divide both sides by -1.
x_{1}=\frac{e-3}{-1}
Dividing by -1 undoes the multiplication by -1.
x_{1}=3-e
Divide e-3 by -1.
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