Geometry HELP!!

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I need help with my geometry hw, i need to now wat the properties are for the following statements.

1. If 2x=6, then x=3

2. If 42 degrees + measure of angle 2 = 90 degrees, then measure of angle 2 = 48 degrees

3. If measure of angle D = 40 degrees and measure of E = 90 degrees - measure of angle D, then measure of angle E is 50 degrees

4. If measure of J = 20 degrees, then 3(measure of J) = 60 degrees

  • Geometry HELP!! -

    It looks right to me!

  • Geometry HELP!! -

    What is the value of x?

    An irregular pentagon. The interior angles of the pentagon measure x degrees, 131 degrees, 108 degrees, 107 degrees, and 110 degrees.

    Enter your answer in the box.

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