5 times a number is that number minus 3

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5 times a number is that number minus 3

The phrase a number means an arbitrary variable. Let's call it x.

• 5 times a number: 5x
• That number means we use the same number from above which is x
• That number minus 3: x - 3
• The phrase is means an equation, so we set 5x equal to x - 3

5x = x - 3