Sam is trying to lose weight, and george is trying to gain weight. sam’s weight in pounds can be represented by the function f(x) = 240 – 2x, where x is the number of weeks since sam started losing weight. george’s weight in pounds can be represented by the function g(x) = 180 + 4x, where x is the number of weeks since george starting gaining weight. what is the x-value when f(x) = g(x) when f(x) = g(x), what does the x-value represent? when sam and george weigh the same, what will their weight be?