document.write( "Question 515065: Can you please Help me with this problem: Fine the soulution set for the inequality.
\n" ); document.write( "-15x + 21 <(absolute value) -3(4x + 1)
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Algebra.Com's Answer #343689 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
Fine the soulution set for the inequality.
\n" ); document.write( "-15x + 21 <(absolute value) -3(4x + 1)
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\n" ); document.write( "-15x + 21 < |-3(4x+1)|
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\n" ); document.write( "Note: The -3(4x+1) could be positive, zero, or it could be negative.
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\n" ); document.write( "It is positive if (4x+1)<0 , i.e. x < -1/4
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\n" ); document.write( "Draw a Number line and plot x = -1/4,
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\n" ); document.write( "Now, if x < -1/4, the equation becomes\r
\n" ); document.write( "\n" ); document.write( "-15x + 21 < -3(4x+1)
\n" ); document.write( "-15x + 21 < -12x-3
\n" ); document.write( "21 < 3x-3
\n" ); document.write( "3x > 24
\n" ); document.write( "x > 8
\n" ); document.write( "But those x's are not < -1/4.
\n" ); document.write( "So there are no solutions below x = -1/4,\r
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\n" ); document.write( "But, if x >= -1/4, the equation becomes\r
\n" ); document.write( "\n" ); document.write( "-15x+21 < 3(4x+1)
\n" ); document.write( "-15x +21 < 12x + 3
\n" ); document.write( "27x > 18
\n" ); document.write( "x > 2/3
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\n" ); document.write( "Solutions: x > 2/3
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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