document.write( "Question 167796: Please help, I'm lost\r
\n" ); document.write( "\n" ); document.write( "-9x+1.7=3x+2.9 (the x is not times but the letter x, so its x I am trying to work out) \n" ); document.write( "

Algebra.Com's Answer #123697 by jim_thompson5910(35256) $\"\"$ $\"About$

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\n" ); document.write( " $\"-9x%2B1.7=3x%2B2.9\"$ Start with the given equation.\r
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\n" ); document.write( "\n" ); document.write( " $\"10%28-9x%2B1.7%29=10%283x%2B2.9%29\"$ Multiply both sides by 10 to clear out the decimals.\r
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\n" ); document.write( "\n" ); document.write( " $\"-90x%2B17=30x%2B29\"$ Distribute and multiply.\r
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\n" ); document.write( "\n" ); document.write( " $\"-90x=30x%2B29-17\"$ Subtract $\"17\"$ from both sides.\r
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\n" ); document.write( "\n" ); document.write( " $\"-90x-30x=29-17\"$ Subtract $\"30x\"$ from both sides.\r
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\n" ); document.write( "\n" ); document.write( " $\"-120x=29-17\"$ Combine like terms on the left side.\r
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\n" ); document.write( "\n" ); document.write( " $\"-120x=12\"$ Combine like terms on the right side.\r
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\n" ); document.write( "\n" ); document.write( " $\"x=%2812%29%2F%28-120%29\"$ Divide both sides by $\"-120\"$ to isolate $\"x\"$ .\r
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\n" ); document.write( "\n" ); document.write( " $\"x=-1%2F10\"$ Reduce.\r
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\n" ); document.write( "\n" ); document.write( "Answer:\r
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\n" ); document.write( "\n" ); document.write( "So the answer is $\"x=-1%2F10\"$ which in decimal form is to $\"x=-0.1\"$ . \r
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\n" ); document.write( "\n" ); document.write( "Alternative way\r
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\n" ); document.write( "\n" ); document.write( " $\"-9x%2B1.7=3x%2B2.9\"$ Start with the given equation.\r
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\n" ); document.write( "\n" ); document.write( " $\"-9x=3x%2B2.9-1.7\"$ Subtract $\"1.7\"$ from both sides.\r
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\n" ); document.write( "\n" ); document.write( " $\"-9x-3x=2.9-1.7\"$ Subtract $\"3x\"$ from both sides.\r
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\n" ); document.write( "\n" ); document.write( " $\"-12x=2.9-1.7\"$ Combine like terms on the left side.\r
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\n" ); document.write( "\n" ); document.write( " $\"-12x=1.2\"$ Combine like terms on the right side.\r
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\n" ); document.write( "\n" ); document.write( " $\"x=%281.2%29%2F%28-12%29\"$ Divide both sides by -12 to isolate \"x\"\r
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\n" ); document.write( "\n" ); document.write( " $\"x=-0.10\"$ Divide.\r
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\n" ); document.write( "\n" ); document.write( "So the answer is $\"x=-0.10\"$ (which is the same as the previous answer)
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