the sum of 7 times y and 3 is equal to 2

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the sum of 7 times y and 3 is equal to 2

7 times y:
7y

The sum of 7 times y and 3 means we add 3 to 7y
7y + 3

The phrase is equal to means an equation, so we set 7y + 3 equal to 2
7y + 3 = 2