Ask Question
8 October, 06:48

3y = - x+11

2x+4y = 14

Solve the system.

+5
Answers (2)
  1. 8 October, 07:19
    0
    x = - 1

    y = 4

    Step-by-step explanation:

    3y = - x + 11

    2x + 4y = 14

    Rearrange equation 1

    It becomes

    x + 3y = 11

    2x + 4y = 14

    Multiply equation 1 by 4 and equation 2 by 3

    We have

    4x + 12y = 44

    6x + 12y = 42

    Subtract equation 2 from one

    We have

    -2x = 2

    Divide both sides by-2

    x = - 2/2

    x = - 1

    Now substitute-1 for x in any of the equations to get y.

    Using equation 1, we have

    -1 + 3y = 11

    Add 1 to both sides of the equation

    -1 + 1 + 3y = 11 + 1

    3y = 12

    Divide both sides by 3

    3y/3 = 12/3

    y = 4
  2. 8 October, 10:19
    0
    x = - 1 and y = 4

    Step-by-step explanation:

    Step 1: Solve 3y = - x + 11 for x

    3y + x = - x + 11 + x

    x + 3y = 11

    x + 3y - 3y = 11 - 3y

    x = - 3y + 11

    Step 2: Substitute - 3y + 11 for x in 2x + 4y = 14

    2 (-3y + 11) + 4y = 14

    Simplify both sides of the equation, and you get - 2y + 22 = 14

    -2y + 22 - 22 = 14 - 22

    -2y = - 8

    -2y/-2 = - 8/-2

    y = 4

    Step 3: Substitute 4 for y in x = - 3y + 11

    x = - 3 (4) + 11

    Simplify both sides of the equation, and you get x = - 1
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “3y = - x+11 2x+4y = 14 Solve the system. ...” 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