Sorry I was called out for a moment, abigail2010 or tryeo, if still here, I only have one question, that is why I do not understand using substitution. My problem is, there is 56 houses for sale with two floor plans. I am to use x to represent floor plan one, and y for floor plan two. Then there is 3 times as many homes available with floor plan two, and I am to figure out how many of each floor plans are avaailable using the substitution I am confused and would like someone to explain this to me ste by step if possible cause I want to learn

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when you substitute what exactly are you doing, like why is 56 = x + 3x, what happened to y

y is equal to 3x.... that was given.. So you can substitute y as 3x.

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