To solve the equation 7.5 d equals 2.5 d , Lin divides each side by 2.5 d, and Elena subtracts 2.5 d from each side. Will both moves lead to the solution?
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To solve the equation 7.5d=2.5d, Lin divides each side by 2.5d, and Elena subtracts 2.5d from each side. Will both moves lead to the solution? Explain your reasoning.
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