Solve for α
\alpha =110-\gamma
Solve for γ
\gamma =110-\alpha
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\alpha +\gamma =180-70
Subtract 70 from both sides.
\alpha +\gamma =110
Subtract 70 from 180 to get 110.
\alpha =110-\gamma
Subtract \gamma from both sides.
70+\gamma =180-\alpha
Subtract \alpha from both sides.
\gamma =180-\alpha -70
Subtract 70 from both sides.
\gamma =110-\alpha
Subtract 70 from 180 to get 110.
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