document.write( "Question 469220: 1 and 2 are supplementary. If m 1 = 60° and m 2 = (2x + 20). What is the value of x? i dont understand what they are asking? \n" ); document.write( "
Algebra.Com's Answer #321929 by Tatiana_Stebko(1539)\"\" \"About 
You can put this solution on YOUR website!
if angles 1 and 2 are supplementary then their sum is 180°.
\n" ); document.write( "So\"m1%2Bm2=180\"
\n" ); document.write( "\"60%2B%282x%2B20%29=180\"
\n" ); document.write( "\"2x=180-60-20\"
\n" ); document.write( "\"2x=100\"
\n" ); document.write( "\"x=100%2F2\"
\n" ); document.write( "\"x=50\"
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