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Setting up and solving a linear equation

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The sum of two numbers is 40. their difference is 18. What are the two numbers?

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Solution Summary

Step by step solution of solving the problem, The sum of two numbers is 40. their difference is 18. What are the two numbers?

Solution Preview

Let the bigger number be x, and the smaller number be y.

Therefore:

x + y = 40 (equation 1)
x-y = 18 ...

Solution provided by:
Manal Elkhoshkhany, MBA
Education
  • BA, Ain Shams University, Cairo Egypt
  • MBA, California State University, Sacramento
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