The equation for the parallel line containing C is: y=-3x+14.
Graph with answer and work is on this link: https://www.geogebra.org/classic/fyh68dj4
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Hope this helps :)
See picture for math work and answer.
Answer:
2x=10
Step-by-step explanation:
7x-14=21
x=5
2x=10 (divide both sides by two)
2x/2 10/2
<u>x=5</u>
