document.write( "Question 295060: if a+b+c= 26, a+b=15 and b+c=20, find the value of b. \n" ); document.write( "
Algebra.Com's Answer #212699 by ozybloke(7)\"\" \"About 
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If a + b + c = 26, a + b = 15 and b + c = 20, find the value of b.
\n" ); document.write( "If a + b = 15
\n" ); document.write( "then 15 + c = 26
\n" ); document.write( "c = 26 - 15
\n" ); document.write( "c = 11\r
\n" ); document.write( "\n" ); document.write( "If b + c = 20
\n" ); document.write( "b + 11 = 20
\n" ); document.write( "b = 20 - 11
\n" ); document.write( "b = 9\r
\n" ); document.write( "\n" ); document.write( "PS: a = 6\r
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