Ask Question
4 August, 08:51

Solve.

{d+e=2

{d-e=4

Use the substitution method.

There are an infinite number of solutions.

There is no solution.

The solution is (5, 1).

The solution is (3, - 1).

+3
Answers (2)
  1. 4 August, 09:23
    0
    From 1st equation

    d + e = 2

    d = 2 - e

    From 2nd equation, subtitute d with 2 - e

    d - e = 4

    2 - e - e = 4

    2 - 2e = 4

    -2e = 2

    e = - 1

    Find d

    d = 2 - e

    d = 2 - (-1)

    d = 3

    The solution is (3,-1)
  2. 4 August, 10:30
    0
    Adding up the two equations, we have

    2d=6

    Hence d=3

    Then the solution is (3, - 1)
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “Solve. {d+e=2 {d-e=4 Use the substitution method. There are an infinite number of solutions. There is no solution. The solution is (5, 1). ...” 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