Solve for λ
\lambda =1
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8+10=18\lambda
Add 2 and 6 to get 8.
18=18\lambda
Add 8 and 10 to get 18.
18\lambda =18
Swap sides so that all variable terms are on the left hand side.
\lambda =\frac{18}{18}
Divide both sides by 18.
\lambda =1
Divide 18 by 18 to get 1.
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