document.write( "Question 449855: Find the value of z if 4 + z + 2 = 20 + 2z \n" ); document.write( "
Algebra.Com's Answer #309437 by marilynh(7)\"\" \"About 
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4 + z + 2 = 20 + 2z\r
\n" ); document.write( "\n" ); document.write( "6 + z = 20 + 2z\r
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\n" ); document.write( "\n" ); document.write( "You need to move the variable z to one side and the numbers to the other side of the = sign.\r
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\n" ); document.write( "\n" ); document.write( "Subtract z from both sides:
\n" ); document.write( "6 = 20 + z\r
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\n" ); document.write( "\n" ); document.write( "Subtract 20 from both sides:
\n" ); document.write( "-14 = z
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