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2 January, 03:04

Luicia tried to solve the system 2x + 2y = 14 x-2y=-2

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  1. 2 January, 03:17
    0
    (x, y) = (-1/4, - 3/4)

    Step-by-step explanation:

    1. Write as a system

    2x + 2y = 14x - 2y = - 2

    2. Eliminate one variable by adding the equations

    2x + 2y = - 2

    14 x - 2y = - 2

    3. Divide both sides by 16

    16x = - 4

    4. Substitute the value of x into the equation.

    x = - 1/4

    5. Solve the equation

    2 (-1/4) + 2y = - 2

    6. A possible solution is

    y = - 3/4

    7. Check the solution

    (x, y) = (-1/4, - 3/4)

    8. Simplify the expression

    2 (-1/4) + 2 (-3/4) = 14 (1/4) - 2 (-3/4) = - 2

    9. The ordered pair is a solution

    -2 = - 2 = - 2

    10. (x, y) = (-1/4, - 3/4)
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