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Mathematics, 03.07.2019 18:00 deedoe2679

Phil solved the equation x + 235.12 = 310.21, and found the solution to be 545.33. is he correct? if not, what was his mistake?

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Phil solved the equation x + 235.12 = 310.21, and found the solution to be 545.33. is he correct? i...
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