Giovanni is thinking of a number. If he adds 2 to it, then divides that sum by 3, he gets 7. What is

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Giovanni is thinking of a number. If he adds 2 to it, then divides that sum by 3, he gets 7. What is the number?

Let the number be n:

• n
• Add 2: n + 2
• Divide the sum by 3: (n + 2)/3
• The word "gets" means an equation, so we set (n + 2)/3 equal to 7

(n + 2)/3 = 7

Cross multiply:
n + 2 = 21

To solve for n, we type this equation into our search engine and we get:
n = 19