document.write( "Question 976960: how does +3*x+9=0 ? I dont get it .... \n" ); document.write( "
Algebra.Com's Answer #598441 by Alan3354(69443)\"\" \"About 
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how does +3*x+9=0 ? I dont get it ....
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\n" ); document.write( "If x = -3,
\n" ); document.write( "+3*(-3) + 9 = -9 + 9 = 0
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\n" ); document.write( "The equation is true if x = -3
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\n" ); document.write( "Usually you see this:
\n" ); document.write( "3*x+9=0 solve for x
\n" ); document.write( "Subtract 9
\n" ); document.write( "3x = -9
\n" ); document.write( "Divide by 3
\n" ); document.write( "x = -3
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