document.write( "Question 135993: i'm not quite sure if this is evaluation of expressions, parentheses, i'm just confused! i'm in 7th grade pre algebra and i was wondering if you could help me. the homework i'm having troubele with is this for exameble...
\n" ); document.write( " 3(3-y)+1=31 and 8x-11(x-2)=-1 theres alot more but those are just two on that page. also if you could walk me through the problem in a really simple way that would be awsome! i cant figure any of it out. i went to another homework helper and it was too complecated. haha. so if you could pleas please please help me soon that would be amazing
\n" ); document.write( "-confused \n" ); document.write( "

Algebra.Com's Answer #99621 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
OK, let's go step by step.
\n" ); document.write( "The key is variables (x,y,z,etc.) on one side, everything else on the other side.
\n" ); document.write( "Usually variable on the left, everything else on the right.
\n" ); document.write( " $\"3%283-y%29%2B1=31\"$
\n" ); document.write( " $\"3%283%29-3y%2B1=31\"$ Distributive property.
\n" ); document.write( " $\"9-3y%2B1=31\"$ Simplify.
\n" ); document.write( " $\"-3y%2B10=31\"$ Simplify.
\n" ); document.write( " $\"-3y%2B10-10=31-10\"$ Subtract 10 from both sides of the equation.
\n" ); document.write( " $\"-3y=21\"$ Simplify.
\n" ); document.write( " $\"y=21%2F%28-3%29\"$ Divide both sides by (-3).
\n" ); document.write( " $\"y=-7\"$ Simplify.
\n" ); document.write( "Go back to your original equation and verify.
\n" ); document.write( " $\"3%283-y%29%2B1=31\"$
\n" ); document.write( " $\"3%283-%28-7%29%29%2B1=31\"$
\n" ); document.write( " $\"3%283%2B7%29%2B1=31\"$
\n" ); document.write( " $\"3%2810%29%2B1=31\"$
\n" ); document.write( " $\"30%2B1=31\"$
\n" ); document.write( " $\"31=31\"$
\n" ); document.write( "Your answer led to a true statement.
\n" ); document.write( "It's a good answer.
\n" ); document.write( "Next one.
\n" ); document.write( " $\"8x-11%28x-2%29=-1\"$
\n" ); document.write( " $\"8x-11x-11%28-2%29=-1\"$ Distributive property.
\n" ); document.write( " $\"8x-11x%2B22=-1\"$
\n" ); document.write( " $\"-3x%2B22=-1\"$
\n" ); document.write( " $\"-3x%2B22-22=-1-22\"$
\n" ); document.write( " $\"-3x=-23\"$
\n" ); document.write( " $\"x=23%2F3\"$
\n" ); document.write( "Check your answer.
\n" ); document.write( " $\"8x-11%28x-2%29=-1\"$
\n" ); document.write( " $\"8%2823%2F3%29-11%28%2823%2F3%29-2%29=-1\"$
\n" ); document.write( " $\"8%2823%2F3%29-11%28%2823%2F3%29-6%2F3%29=-1\"$
\n" ); document.write( " $\"8%2823%2F3%29-11%2817%2F3%29=-1\"$
\n" ); document.write( " $\"184%2F3-187%2F3=-1\"$
\n" ); document.write( " $\"-3%2F3=-1\"$
\n" ); document.write( " $\"-1=-1\"$
\n" ); document.write( "Your answer led to a true statement.
\n" ); document.write( "It's a good answer.
\n" ); document.write( "Hope that helps.
\n" ); document.write( "Let's me know if any areas need any clarification. \n" ); document.write( "

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