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7 September, 10:44

In a right triangle, 40-x = (3x). What is the value of x?

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Answers (1)
  1. 7 September, 11:06
    0
    x=10

    Step-by-step explanation:

    Let's solve your equation step-by-step.

    40-x=3x

    Step 1: Simplify both sides of the equation.

    40-x=3x

    40+-x=3x

    -x+40=3x

    Step 2: Subtract 3x from both sides.

    -x+40-3x=3x-3x

    -4x+40=0

    Step 3: Subtract 40 from both sides.

    -4x+40-40=0-40

    -4x=-40

    Step 4: Divide both sides by - 4.

    -4x

    -4

    =

    -40

    -4

    x=10
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