Olivier said that his teacher would not accept 5-x as an answer to a problem but insisted that the answer be written as x-5. Use a property of equality to write a paragraph to the teacher either supporting or not supporting this request. The teacher's requirement that x be on the left side of the equals sign in the answer supported by mathematical principles. According to the property of equality, 5-x 5-x, so the two forms equivalent. ▼x-5. x=5

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