document.write( "Question 161518: I have a worksheet and have two questions for you. I am totally lost.\r
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document.write( "1. Solve 3+2(1-x)>6 or 2x+14< or eual to 8. Graph the solution set on a number line. For this one one of the solutions I came up with is x < or equal to 11. Not sure on the other one.\r
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document.write( "2. Solve 3+ absolute value 2y-1 absolute value > or equal to 1. Graph the solution set on a number line.\r
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document.write( "Please help..
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document.write( "Thanks \n" );
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Algebra.Com's Answer #118997 by gonzo(654)![]() ![]() ![]() You can put this solution on YOUR website! i solve first one as follows: \n" ); document.write( "3 + 2*(1-x) > 6 \n" ); document.write( "removing parentheses \n" ); document.write( "3 + 2 - 2*x > 6 \n" ); document.write( "adding 2*x to both sides and subtracting 6 from both sides gets \n" ); document.write( "3 + 2 - 6 > 2*x \n" ); document.write( "which becomes \n" ); document.write( "5 - 6 > 2*x \n" ); document.write( "which becomes \n" ); document.write( "-1 > 2*x \n" ); document.write( "subtracting 2*x from both sides and adding 1 to both sides and the equation becomes \n" ); document.write( "-2*x > 1 \n" ); document.write( "multiplying both sides by -1 and the equation becomes \n" ); document.write( "2*x < -1 (note reversal of inequality. \n" ); document.write( "dividing both sides by 2 and equation becomes \n" ); document.write( "x < -1/2 \n" ); document.write( "----- \n" ); document.write( "i solve second one as follows. \n" ); document.write( "2*x + 14 <= 8 \n" ); document.write( "subtracting 14 from both sides and it becomes \n" ); document.write( "2*x <= 8 - 14 \n" ); document.write( "which becomes \n" ); document.write( "2*x <= -6 \n" ); document.write( "dividing both sides by 2 and it becomes \n" ); document.write( "x <= -3 \n" ); document.write( "----- \n" ); document.write( "third one is a little confusing but i'll assume you mean \n" ); document.write( "3 + |2*y-1| >= 1 \n" ); document.write( "subtracting 3 from both sides and the equation becomes \n" ); document.write( "|2*y-1| >= -2 \n" ); document.write( "which doesn't make a lot of sense because the absolute value of anything will always be greater than 0, let alone -2. \n" ); document.write( "i can't really solve this part because i don't understand the question very well. \n" ); document.write( "resubmit this one if i got it wrong. \n" ); document.write( "if i got it right, then \n" ); document.write( "|2*y-1| >= -2 \n" ); document.write( "is your answer and it will be valid for any value of y and the lowest value of |2*y-1| will be 0. \n" ); document.write( "----- \n" ); document.write( "back to the first two. \n" ); document.write( "we have 2 equations. \n" ); document.write( "first one is \n" ); document.write( "x < -1/2 \n" ); document.write( "second one is \n" ); document.write( "x <= -3 \n" ); document.write( "----- \n" ); document.write( "i don't know if i can draw a number line good enough, but here's an attempt.\r \n" ); document.write( "\n" ); document.write( "----------------------------------------------------------------------------- \n" ); document.write( " -3 -1/2 0 1/2 3 \n" ); document.write( "----------------------------------------------------------------------------- \n" ); document.write( "---------------------------------| \n" ); document.write( "x is to the left up to but not including -1/2 for the first equation.\r \n" ); document.write( "\n" ); document.write( "----------------------------------------------------------------------------- \n" ); document.write( " -3 -1/2 0 1/2 3 \n" ); document.write( "----------------------------------------------------------------------------- \n" ); document.write( "------------------| \n" ); document.write( "x is to the left up to and including -3 for the second equation. \n" ); document.write( "----- \n" ); document.write( " \n" ); document.write( " |