document.write( "Question 1152388: Please help me solve for A and B. Answers are A=3, B=-7 but I do not know how they got that. Thanks!\r
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Algebra.Com's Answer #774392 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "Add the terms on the right side
\n" ); document.write( "\"A%2A%283x%2B2%29+%2B+B%2A%28x%2B1%29+=+2x-1\" since the DENs are the same
\n" ); document.write( "\"3Ax+%2B+2A+%2B+Bx+%2B+B+=+2x-1\"
\n" ); document.write( "x*(3A + B) + 2A + B = 2x - 1
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\n" ); document.write( "3A + B = 2
\n" ); document.write( "2A + B = -1
\n" ); document.write( "etc
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