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has an endpoint at (25, -5) and a midpoint of (18, -1). What is the value of the x-coordinate of the other endpoint?
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Try solving for x here. \[18 = \frac{x + 25}{2}\]
1.44???
How did you get that?
divided 25 by 2 then divided 18 by that number
Ok. FIrst of all, what is the opposite of division?
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\[18 = \frac{x + 25}{2}\]\[18 \times 2 = \frac{x + 25}{2}\times \frac{2}{1}\]\[36 = \frac{x + 25}{\cancel{2}1} \times \frac{\cancel{2}1}{1}\]\[36 = x + 25\]Can you solve for x now?
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