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8 June, 16:41

What is the solution of the system?

Use the substitution method.

{y-2x=8

{16+4x=2y

The only solution is (24, 0)

The only solution is (1, 10)

There is no solution.

There are an infinite number of solutions.

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Answers (1)
  1. 8 June, 16:42
    0
    Subsitution

    solve for y in first equation

    add 2x to both sides

    y=2x+8

    sub 2x+8 for y in second equation

    16+4x=2 (2x+8)

    divide both sides by 2

    8+2x=2x+8

    true

    there are infinite solutions for x

    therefor infinite soltions for y

    there are an infinite number of solutions
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