document.write( "Question 96936: I have a problem I don't have a clue on how to solve? If I could get some help I'd appreciate it very much. My last question was never answered that I can see, so if someone could help me I'd be very greatful.\r
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document.write( "Solve: |7x-4|=10 ?\r
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document.write( "Thank you \n" );
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Algebra.Com's Answer #70566 by mathslover(157)![]() ![]() You can put this solution on YOUR website! We have , |a| = a for a > 0 \n" ); document.write( " |a| = -a for a < 0\r \n" ); document.write( "\n" ); document.write( "for the expression |7x -4 | = 10\r \n" ); document.write( "\n" ); document.write( "for 7x -4 > 0 or x > 7/4 we have \n" ); document.write( " 7x -4 =10 \n" ); document.write( " 7x = 14. \n" ); document.write( " x=2 which is > 7/4 . hence x=2 is one solution\r \n" ); document.write( "\n" ); document.write( "for 7x -4 < 0 or x < 4/7 we have\r \n" ); document.write( "\n" ); document.write( "-(7x - 4) =10 \n" ); document.write( "or -7x =6 \n" ); document.write( "x= -6/7 which satisfies x < 4/7\r \n" ); document.write( "\n" ); document.write( "therefore -6/7 is the other solution\r \n" ); document.write( "\n" ); document.write( "Hence solution set for the equation is { 2, -6/7} \n" ); document.write( " \n" ); document.write( " |