document.write( "Question 183802: 1) 4(a-3)=3-(a+5)\r
\n" ); document.write( "\n" ); document.write( "2) 3z=2(z-3)+9\r
\n" ); document.write( "\n" ); document.write( "3) 8a-(a-7)=21\r
\n" ); document.write( "\n" ); document.write( "I am in an adult ed program getting my high school diploma. These three problems are the only ones that I am struggling real hard with. We are given packets to work--and I have grasped most of the problems. These three are the ones that are not computing for me. HELP!!
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Algebra.Com's Answer #137919 by halbren(10)\"\" \"About 
You can put this solution on YOUR website!
Problem 1
\n" ); document.write( "First eliminate the parentheses by distribution
\n" ); document.write( "\"4a-%284%29%283%29=+3-a-5\"
\n" ); document.write( "remember that a - sign outside a ( stands for -1 so you need to multiply everything inside the parentheses by -1
\n" ); document.write( "simplify
\n" ); document.write( "\"4a-12=-a-2\"
\n" ); document.write( "Add 12 to both sides
\n" ); document.write( "\"4a-12%2B12=-a-2%2B12\"
\n" ); document.write( "\"4a=-a%2B10\"
\n" ); document.write( "Add a to both sides
\n" ); document.write( "\"4a%2Ba=-a%2Ba%2B10\"
\n" ); document.write( "\"5a=10\"
\n" ); document.write( "Divide both sides by 5
\n" ); document.write( "\"5a%2F5=10%2F5\"
\n" ); document.write( "\"a=2\"\r
\n" ); document.write( "\n" ); document.write( "Problem 2 is similar
\n" ); document.write( "\"3z=2z-2%2A3%2B9\"
\n" ); document.write( "\"3z=2z-6%2B9\"
\n" ); document.write( "\"3z=2z%2B3\"
\n" ); document.write( "Subtract 2z from both sides
\n" ); document.write( "\"3z-2z=2z-2z%2B3\"
\n" ); document.write( "\"z=3\"\r
\n" ); document.write( "\n" ); document.write( "Problem 3 has the - sign like problem 1. You should be able to follow the same steps
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