document.write( "Question 182979: 1.
\n" ); document.write( "if I don't actually SEE this in progress, I will NEVER understand it. Please help.\r
\n" ); document.write( "\n" ); document.write( "1. Simplify the algebraic expression
\n" ); document.write( "5xy - 3yz - 5xz + yz - 4xz + 7xy
\n" ); document.write( "and evaluate it for x = 10, y = -4, z = -6.
\n" ); document.write( "Identify the variables, constants, and coefficients in the simplified expression.\r
\n" ); document.write( "\n" ); document.write( "thank you!
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Algebra.Com's Answer #137368 by checkley77(12844)\"\" \"About 
You can put this solution on YOUR website!
5xy - 3yz - 5xz + yz - 4xz + 7xy
\n" ); document.write( "First combine all like terms:
\n" ); document.write( "(5xy+7xy)+(yz-3yz)-(5xz+4xz)
\n" ); document.write( "12xy-2yz-9xz
\n" ); document.write( "Now replace the x,y & z terms with their numeric values:
\n" ); document.write( "and evaluate it for x = 10, y = -4, z = -6.
\n" ); document.write( "12(10*-4)-2(-4*-6)-9(10*-6)
\n" ); document.write( "12*-40-2*24-9*-60
\n" ); document.write( "-480-48+540=12 ans.
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