Ask Question
12 January, 07:15

2x + 3y = 51

- x+2y = 8) substitution method

+3
Answers (1)
  1. 12 January, 07:36
    0
    Step-by-step explanation:

    2x + 3y = 51 ... (1)

    - x+2y = 8 ... (2)

    Making x as subject in equation (2)

    -x = - 2y + 8

    x = 2y - 8 ... (3)

    Substituting (3) in (1)

    2 (2y - 8) + 3y = 51

    4y - 16 + 3y = 51

    Collecting like terms

    4y + 3y = 51 + 16

    7y = 67

    y = 67/7

    y = 9 4/7

    And x = 2y - 8

    x = 2 (67/7) - 8

    x = 134/7 - 8

    x = (134 - 56) / 7

    x = 78/7

    x = 11 1/7
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “2x + 3y = 51 - x+2y = 8) substitution method ...” in 📘 Mathematics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers