Ask Question
16 November, 16:55

Solve the system:

5y+8 (x-3y) = 7x-12

9x+3 (x-9y) = 11y+46

+2
Answers (1)
  1. 16 November, 20:47
    0
    5y+8 (x-3y) = 7x-12

    5y+8x-24y=7x-12

    8x-7x + 5y-24y = - 12

    X - 19y = - 12

    9x+3 (x-9y) = 11y+46

    9x+3x - 27y = 11y + 46

    12x - 27y - 11y = 46

    12x - 38y = 46

    Now joining together

    X - 19y = - 12

    12x - 38y = 46

    Multiple by 12 the first equation and Substract after

    12x - 228y = - 144

    12x - 38y = 46

    - 190y = - 98

    Y = 1.9

    12x - 38y = 46

    12x - 38 (1.9) = 46

    12x - 73.67 = 46

    12x = 46 + 73.67

    12x = 119.67

    X = 9.97

    So the answer are:

    X = 9.97

    Y = 1.9
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “Solve the system: 5y+8 (x-3y) = 7x-12 9x+3 (x-9y) = 11y+46 ...” 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