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11 November, 11:40

Use substitution to solve. 2x? = 5 + y 4y = - 20 + 8x? Solve the first equation for y and substitute it into the second equation. The resulting equation is

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  1. 11 November, 11:43
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    infinite solutions.

    Step-by-step explanation:

    got it right on the assignment
  2. 11 November, 11:59
    0
    Infinite Solutions

    Step-by-step explanation:

    2x = 5 + y and 4y = - 20 + 8x can be solved by substituting one equation into another to find the variables.

    2x = 5 + y becomes y = 2x - 5. Substitute this expression into 4y = - 20 + 8x.

    4 (2x - 5) = - 20 + 8x

    8x - 20 = - 20 + 8x

    8x - 8x - 20 = - 20 + 8x - 8x

    -20 = - 20

    This has infinite solutions since x eliminates and a true statement is left.
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