Ask Question
3 September, 13:46

Find the solution set for the system of equations.

9x + 5y = 28

5x + 9y = 56

+2
Answers (1)
  1. 3 September, 16:06
    0
    9x + 5y = 28 ⇒ 81x + 45y = 252

    5x + 9y = 56 ⇒ 25x + 45y = 280

    56x = - 28

    56 56

    x = ⁻¹/₂

    9x + 5y = 28

    9 (⁻¹/₂) + 5y = 28

    4¹/₂ + 5y = 28

    - 4¹/₂ - 4¹/₂

    5y = 23¹/₂

    5 5

    y = 4⁷/₁₀

    (x, y) = 4¹/₂, 4⁷/₁₀)
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “Find the solution set for the system of equations. 9x + 5y = 28 5x + 9y = 56 ...” in 📙 Mathematics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers