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If you need to use an equation, add or write one in your Office app.

  1. Select Insert > Equation or press Alt + =.

  2. To use a built-in formula, select Design > Equation.

  3. To create your own, select Design > Equation > Ink Equation.

  4. Use your finger, stylus, or mouse to write your equation.

  5. Select Insert to bring your equation into the file.

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