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Solve for λ_1, λ_2, λ_3
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\lambda _{1}=-\lambda _{2}+3\lambda _{3}
Solve \lambda _{1}+\lambda _{2}-3\lambda _{3}=0 for \lambda _{1}.
-\lambda _{2}+3\lambda _{3}-\lambda _{2}+5\lambda _{3}=0
Substitute -\lambda _{2}+3\lambda _{3} for \lambda _{1} in the equation \lambda _{1}-\lambda _{2}+5\lambda _{3}=0.
\lambda _{2}=4\lambda _{3} \lambda _{3}=\frac{1}{6}\lambda _{2}
Solve the second equation for \lambda _{2} and the third equation for \lambda _{3}.
\lambda _{3}=\frac{1}{6}\times 4\lambda _{3}
Substitute 4\lambda _{3} for \lambda _{2} in the equation \lambda _{3}=\frac{1}{6}\lambda _{2}.
\lambda _{3}=0
Solve \lambda _{3}=\frac{1}{6}\times 4\lambda _{3} for \lambda _{3}.
\lambda _{2}=4\times 0
Substitute 0 for \lambda _{3} in the equation \lambda _{2}=4\lambda _{3}.
\lambda _{2}=0
Calculate \lambda _{2} from \lambda _{2}=4\times 0.
\lambda _{1}=-0+3\times 0
Substitute 0 for \lambda _{2} and 0 for \lambda _{3} in the equation \lambda _{1}=-\lambda _{2}+3\lambda _{3}.
\lambda _{1}=0
Calculate \lambda _{1} from \lambda _{1}=-0+3\times 0.
\lambda _{1}=0 \lambda _{2}=0 \lambda _{3}=0
The system is now solved.