<span>135.28 should be it is that all the probm</span>
The answer should be x=60. ABD are an equilateral triangle all the angles must add up to 180. 60*3=180. Also if you have a protractor you can measure the angle C, the 60 degrees part and measure it against A, D and B. Hope this helps.
You need to get "x" by itself on one side

Add positive eight on both sides---because its the opposite of negaitve


Divide -2 by -2
-2÷-2=1
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I-1 is the polynomials because I is the linear term and 1 is the constant