document.write( "Question 722114: Solve the simultaneous equations;
\n" ); document.write( "3a+3b=7.5
\n" ); document.write( "5a-2b=9 \n" ); document.write( "
Algebra.Com's Answer #442628 by mananth(16946)\"\" \"About 
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3.00 a + 3.00 b = 7.50 .............1
\n" ); document.write( "Total value
\n" ); document.write( "5.00 a -2.00 b = 9.00 .............2
\n" ); document.write( "Eliminate y
\n" ); document.write( "multiply (1)by 2.00
\n" ); document.write( "Multiply (2) by 3.00
\n" ); document.write( "6.00 a 6.00 b = 15.00
\n" ); document.write( "15.00 a -6.00 b = 27.00
\n" ); document.write( "Add the two equations
\n" ); document.write( "21.00 a = 42.00
\n" ); document.write( "/ 21.00
\n" ); document.write( "a = 2.00
\n" ); document.write( "plug value of a in (1)
\n" ); document.write( "3.00 a + 3.00 b = 7.50
\n" ); document.write( "6.00 + 3.00 b = 7.50
\n" ); document.write( " 3.00 b = 7.50 -6
\n" ); document.write( " 3.00 b = 1.50
\n" ); document.write( " b = 0.50
\n" ); document.write( " \n" ); document.write( "
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