Ask Question
2 January, 14:38

3x - 5y = 4

- 2x + 6y = 18. what is x and y

+4
Answers (1)
  1. 2 January, 15:45
    0
    Let's isolate

    x

    in the first:

    x

    =

    18

    3

    -

    6

    y

    3

    x

    =

    6

    -

    2

    y

    Now, we replace this found

    x

    in the second:

    2

    (

    6

    -

    2

    y

    )

    +

    5

    y

    =

    20

    12

    -

    4

    y

    +

    5

    y

    =

    20

    12

    +

    y

    =

    20

    y

    =

    8

    Now, you just replace this

    y

    =

    8

    in the isolated

    x

    above:

    x

    =

    6

    -

    2

    (

    8

    )

    x

    =

    6

    -

    16

    =

    -

    10
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “3x - 5y = 4 - 2x + 6y = 18. what is x and y ...” 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