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18 February, 04:36

What is the angle x of a triangle? Solve with this equation.

60+x+100 = 180

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Answers (1)
  1. 18 February, 07:51
    0
    20

    Step-by-step explanation:

    60+x+100=180 is the equation we are asked to solve.

    Using commutative property of addition you can rewrite as:

    x+60+100=180

    Using associative property of addition you can rewrite as:

    x + (60+100) = 180

    Combine like terms/simplify:

    x + (160) = 180

    x+160=180

    Use subtraction property of equality to rewrite as:

    x+160-160=180-160

    Simplify both sides:

    x+0=20

    Apply the additive identity property:

    x=20

    So x=20.

    Check.

    60+x+100=180 with x=20:

    60+20+100=180

    80+100=180

    180=180

    The last line I have here is true so x=20 has been verified as the solution.
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