If x = 7, then is 3x + 7 greater than or less than 5x - 6?

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问题 If x = 7, then is 3x + 7 greater than or less than 5x - 6?

选项

答案

解析 The value of x is given, so substitute 7 for x and calculate the value of both sides:
3(7)+ 7 = 28 and 5(7)- 6 = 29
The less than sign(<)is used because 28 < 29.

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本试题收录于： GRE QUANTITATIVE题库GRE分类

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If x = 7, then is 3x + 7 greater than or less than 5x - 6?

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