document.write( "Question 637826: my problem is find the measure of each marked angle. A+B=180. A=(10x+7) B=(7x+3)
\n" ); document.write( "the answer i am looking for is A=107 and B= 73 Show me how to get the same thing
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Algebra.Com's Answer #401910 by DrBeeee(684)\"\" \"About 
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(1) A = 10x + 7
\n" ); document.write( "(2) B = 7x + 3
\n" ); document.write( "(3) A + B = 180
\n" ); document.write( "By substituting A of (1) and B of (2) into (3) you have
\n" ); document.write( "(10x + 7) + (7x + 3) = 180
\n" ); document.write( "Simplifying
\n" ); document.write( "10x +7x +7 +3 = 180
\n" ); document.write( "17x + 10 = 180
\n" ); document.write( "17x = 180 - 10
\n" ); document.write( "17x = 170
\n" ); document.write( "x = 170/17
\n" ); document.write( "x = 10
\n" ); document.write( "By substituting x = 10 into (1) we have
\n" ); document.write( "A = 10*10 + 7
\n" ); document.write( "A = 107
\n" ); document.write( "By substituting x = 10 into (2) we have
\n" ); document.write( "B = 7*10 + 3
\n" ); document.write( "B = 73
\n" ); document.write( "Answer: A = 107 and B = 73
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