The graph represents a system of linear equations comparing the outside and inside temperatures y, in degrees Fahrenheit, recorded at a school one day x hours after 8:00 a.m. After how many hours were the inside and outside temperatures equal? 6 hours 7 hours 8 hours 10 hours

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It will be the point at which the two lines intersect (the x point where the two of them have the same y value). PS would appreciate if you add the aforementioned graph. :)

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