document.write( "Question 556525: Architects often use the equation x+y=18 to determine the height y, in inches, of the riser of a step when the tread is x inches wide. Express the slope of the stairs designed with this equation without using the variable y.
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document.write( "Please help me on this.
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document.write( "Thank you \n" );
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Algebra.Com's Answer #362223 by richard1234(7193)![]() ![]() You can put this solution on YOUR website! y = -x + 18\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Slope is -1 \n" ); document.write( " |