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Mathematics, 13.04.2020 23:03 dontworry48

A teacher asked the class to solve the equation 3(x+2) = 21. Robert wrote 3x + 6 = 21 as his first step. Which property did he use?

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A teacher asked the class to solve the equation 3(x+2) = 21. Robert wrote 3x + 6 = 21 as his first s...
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