7 increased by a number x - 7 + x, the sum of a number x and 10 - x + 10, the quotient of 10 and a number x - 10 / x, 7 times a number x - 7x, twice a number x - 2x, 5 less than x - x - 5, the difference of a number x and 2 - x - 2, the product of a number x and 5 - 5x,

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