document.write( "Question 1113679: What is the value of 2(x+y) - (×-y) if x= 2, y= 1, and z = -3 \n" ); document.write( "
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What is the value of 2(x+y) - (×-y) if x= 2, y= 1, and z = -3
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\n" ); document.write( "\n" ); document.write( "To solve, just substitute the values given for x and y into the equation
\n" ); document.write( "(since the equation does not depend on z, that value is irrelevant):\r
\n" ); document.write( "\n" ); document.write( " 2(2+1) - (2-1) = _________________\r
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