Angad was thinking of a number. Angad adds 20 to it, then doubles it and gets an answer of 53. What

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Angad was thinking of a number. Angad adds 20 to it, then doubles it and gets an answer of 53. What was the original number?

The phrase a number means an arbitrary variable, let's call it n.

• Start with n
• Add 20 to it: n + 20
• Double it means we multiply the expression by 2: 2(n + 20)
• Get an answer of 53: means an equation, so we set 2(n + 20) equal to 53

2(n + 20) = 53

To solve for n, we type this equation into our search engine and we get:
n = 6.5