Ask Question
7 November, 20:18

Find the solution to the system of equations: x + 3y = 7 and 2x + 4y = 8 1. Isolate x in the first equation: 2. Substitute the value for x into the second equation: 3. Solve for y: 4. Substitute y into either original equation: 5. Write the solution as an ordered pair: x = 7 - 3y 2 (7 - 3y) + 4y = 8 14 - 6y + 4y = 8 14 - 2y = 8 - 2y = - 6 y = 3 x + 3 (3) = 7 (,)

+3
Answers (1)
  1. 8 November, 00:05
    0
    X + 3y = 7

    x = - 3y + 7

    2x + 4y = 8

    2 (-3y + 7) + 4y = 8

    -6y + 14 + 4y = 8

    -2y = 8 - 14

    -2y = - 6

    y = - 6/-2

    y = 3

    x + 3y = 7

    x + 3 (3) = 7

    x + 9 = 7

    x = 7 - 9

    x = - 2

    solution is (-2,3)
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “Find the solution to the system of equations: x + 3y = 7 and 2x + 4y = 8 1. Isolate x in the first equation: 2. Substitute the value for x ...” 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