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25 January, 08:48

1) x+3 - 5x + 7 + 4y

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Answers (1)
  1. 25 January, 10:33
    0
    x = 2.5 + y

    Step-by-step explanation:

    Simplifying

    x + 3 + - 5x + 7 + 4y = 0

    Reorder the terms:

    3 + 7 + x + - 5x + 4y = 0

    Combine like terms: 3 + 7 = 10

    10 + x + - 5x + 4y = 0

    Combine like terms: x + - 5x = - 4x

    10 + - 4x + 4y = 0

    Solving

    10 + - 4x + 4y = 0

    Solving for variable 'x'.

    Move all terms containing x to the left, all other terms to the right.

    Add '-10' to each side of the equation.

    10 + - 4x + - 10 + 4y = 0 + - 10

    Reorder the terms:

    10 + - 10 + - 4x + 4y = 0 + - 10

    Combine like terms: 10 + - 10 = 0

    0 + - 4x + 4y = 0 + - 10

    -4x + 4y = 0 + - 10

    Combine like terms: 0 + - 10 = - 10

    -4x + 4y = - 10

    Add '-4y' to each side of the equation.

    -4x + 4y + - 4y = - 10 + - 4y

    Combine like terms: 4y + - 4y = 0

    -4x + 0 = - 10 + - 4y

    -4x = - 10 + - 4y

    Divide each side by '-4'.

    x = 2.5 + y
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