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How many solutions does the following system have?
y = 2x - 12
y = 3x + 12

User Jens Wegar
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1 Answer

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The two slopes of the two equations are 2 and 3 respectively. They are the values just to the left of the x. Since the slopes are different, this means the lines are angled so that they are not parallel.

Non-parallel lines will cross exactly one time. So there is exactly one solution.
User Ivan Stoev
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