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28 December, 09:24

Solve for x: - 4/3x+7=31

solve for x: 3/7-2/7x=1/7

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Answers (1)
  1. 28 December, 09:26
    0
    First Problem;

    Simplify 4/3x to 4x/3

    -4x/3 + 7 = 31

    Subtract 7 from both sides

    -4x/3 = 31 - 7

    Simplify 31 - 7 to 24

    -4x/3 = 24

    Multiply both sides by 3

    -4x = 24 * 3

    Simplify 24 * 3 to 72

    -4x = 72

    Divide both sides by - 4

    x = - 72/4

    Simplify 72/4 to 18

    x = - 18

    Seond problem;

    Simplify 2/7x to 2x/7

    3/7 - 2x/7 = 1/7

    Join the denominators

    3 - 2x/7 = 1/7

    Multiply both sides by 7

    3 - 2x = 1/7 * 7

    Simplify 1/7 * 7 to 1

    3 - 2x = 1

    Subtract 3 from both sides

    -2x = 1 - 3

    Simplify 1 - 3 to - 2

    -2x = - 2

    Divide both sides by - 2

    x = 1
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