document.write( "Question 1189079: Solve the following:
\n" ); document.write( "1.P = 2l + 2w, for l
\n" ); document.write( "2.C = 5/9(F - 32), for F\r
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Algebra.Com's Answer #820299 by math_helper(2461)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "This is basic algebra, so I stongly encourage you to practice this until you know it cold. Otherwise it will hinder you during your learning of more advanced topics.\r
\n" ); document.write( "\n" ); document.write( "1. Solve P = 2l + 2w, for l\r
\n" ); document.write( "\n" ); document.write( "Step-by-step...
\n" ); document.write( " Subtract 2w from both sides (performing valid operation on both sides does not change the equality):
\n" ); document.write( " P - 2w = 2l + 2w - 2w
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\n" ); document.write( " Simplify:
\n" ); document.write( " P - 2w = 2l\r
\n" ); document.write( "\n" ); document.write( " Divide both sides by 2:
\n" ); document.write( " (P - 2w)/2 = 2l/2\r
\n" ); document.write( "\n" ); document.write( " Simplify:
\n" ); document.write( " (P - 2w)/2 = l \r
\n" ); document.write( "\n" ); document.write( " Re-write with l on left hand side:
\n" ); document.write( " \"+highlight%28+l+=+%28P-2w%29%2F2%29+\"\r
\n" ); document.write( "\n" ); document.write( "When you have mastered this, you will do most of the above steps in your head.\r
\n" ); document.write( "\n" ); document.write( "2. C = (5/9)(F - 32)\r
\n" ); document.write( "\n" ); document.write( " i) Multiply both sides by (9/5) & simplify
\n" ); document.write( " (9/5)C = (5/9)(F - 32)*(9/5)
\n" ); document.write( " // On right hand side, notice (5/9)*(9/5) = 1
\n" ); document.write( " (9/5)C = F - 32\r
\n" ); document.write( "\n" ); document.write( " ii) Add 32 to both sides & simplify
\n" ); document.write( " (9/5)C + 32 = F - 32 + 32
\n" ); document.write( " (9/5)C + 32 = F\r
\n" ); document.write( "\n" ); document.write( " \"+highlight%28+F+=+%289%2F5%29C+%2B+32%29+\"\r
\n" ); document.write( "\n" ); document.write( "-----\r
\n" ); document.write( "\n" ); document.write( "When you hear \"move the 2 to the other side\" it really means \"do the opposite operation to both sides of the equation\"
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\n" ); document.write( "For example: Solve for x: y = 2x + 12\r
\n" ); document.write( "\n" ); document.write( "\"move the 12 to the other side\" means to subtract 12 from both sides (the subtraction \"undoes\" the addition on the right): y - 12 = 2x + 12 -12\r
\n" ); document.write( "\n" ); document.write( "y - 12 = 2x (one normally doesn't first write 2x + 12 - 12)\r
\n" ); document.write( "\n" ); document.write( "\"move the 2 to the left hand side\" here means divide both sides by 2:
\n" ); document.write( " (y - 12)/2 = x \r
\n" ); document.write( "\n" ); document.write( "Now we re-write with x on the left hand side:
\n" ); document.write( " x = (y - 12)/2 \r
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