document.write( "Question 644184: the measure of angle A is 9 more than twice the measure of angle B. Ig angle A and angle B are supplementary angles, what is the measure of angle A? \n" ); document.write( "
Algebra.Com's Answer #404892 by nerdybill(7384)\"\" \"About 
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the measure of angle A is 9 more than twice the measure of angle B. Ig angle A and angle B are supplementary angles, what is the measure of angle A?
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\n" ); document.write( "Let b = measure of angle B
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\n" ); document.write( "2b+9 = measure of angle A
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\n" ); document.write( "b + 2b+9 = 180
\n" ); document.write( "3b+9 = 180
\n" ); document.write( "3b = 171
\n" ); document.write( "b = 57 degrees
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\n" ); document.write( "Measure of angle A:
\n" ); document.write( "2b+9 = 2(57)+9 = 114+9 = 123 degrees (answer)
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