0 = Ax + By + C is the equation for general form of a line.
Answer:

Step-by-step explanation:
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<em>Simplify</em>
<u>combine like terms:</u>
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<u>rearrange terms: </u>
<u />
<u />
<u />
<u />
Answer:
Step-by-step explanation:
Opposite (or in The US, vertical) angles are congruent.
Adjacent ( on the same line) angles are supplementary (that is their sum = 180 degrees).