document.write( "Question 1153024: Solve for X\r
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Algebra.Com's Answer #775168 by MathLover1(20849)\"\" \"About 
You can put this solution on YOUR website!
use the rule: Alternate Interior Angles are equal\r
\n" ); document.write( "\n" ); document.write( "pay attention to trapezoid made of two parallel lines, all given angles are its exterior angles\r
\n" ); document.write( "\n" ); document.write( "two alternate interior angles are equal (on shorter base of trapezoid) will be \"4x\" and \"4x%2B8\"
\n" ); document.write( "two alternate interior angles are equal (on greater base of trapezoid) will be \"180-5x\" and \"180-%286x-10%29=180-6x%2B10=190-6x\"\r
\n" ); document.write( "\n" ); document.write( "the sum of all angles in trapezoid is \"360\"\r
\n" ); document.write( "\n" ); document.write( "so, \r
\n" ); document.write( "\n" ); document.write( "\"4x+%2B+%284x%2B8%29%2B%28180-5x%29%2B%28190-6x%29=360\".......solve for \"x\"\r
\n" ); document.write( "\n" ); document.write( "\"4x+%2B+4x%2B8%2B180-5x%2B190-6x=360\"\r
\n" ); document.write( "\n" ); document.write( "\"8x-11x=360-180-8-190\"\r
\n" ); document.write( "\n" ); document.write( "\"-3x=-18\"\r
\n" ); document.write( "\n" ); document.write( "\"x=-18%2F-3\"\r
\n" ); document.write( "\n" ); document.write( "\"x=6\"\r
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