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26 August, 18:15

Solve x: 3x-7 = 5x+13

Solve x: 7-3x = 5x+13

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Answers (2)
  1. 26 August, 18:25
    0
    First you need to combine like terms

    7-3x = 5x+13

    step 1 add 3x

    7=8x+13

    step 2 subteact 13

    -6=8x

    step 3 divide both sides by two

    x=-3/4
  2. 26 August, 18:29
    0
    1.

    Since 5x contains the variable to solve for, move it to the left-hand side of the equation by subtracting 5x from both sides.

    3x-7-5x=13

    Add 3x and - 5x to get - 2x.

    -2x-7=13

    Move - 7 to the right hand side of the equation.

    -2x=7+13

    Add 7 and 13 to get 20.

    -2x=20

    Divide each term in the equation by - 2.

    x=-10

    2.

    Since 5x contains the variable to solve for, move it to the left-hand side of the equation by subtracting 5x from both sides.

    7-3x-5x=13

    Add - 3x and - 5x to get - 8x.

    7-8x=13

    Move 7 to the right hand side of the equation.

    -8x=-7+13

    Add - 7 and 13 to get 6.

    -8x=6

    Divide each term in the equation by - 8.

    x = - 3/4
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