document.write( "Question 142387: If P = 7y + 2xy - 6x and Q = 5 - 7y, find the value of 3P - 4Q.\r
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Algebra.Com's Answer #103666 by checkley77(12844)\"\" \"About 
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P=7y+2xy-6x
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\n" ); document.write( "find the value of 3P-4Q.
\n" ); document.write( "3(7y+2xy-6x)-4(5-7y)
\n" ); document.write( "21y+6xy-18x-20+28y
\n" ); document.write( "49y+6xy-18x-20 answer.\r
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