document.write( "Question 48014This question is from textbook Beginning Algebra
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document.write( ": What is the common error in the first step of solving the following problem.
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document.write( "Equation: 6x - (x + 3) = 5 + 2x
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document.write( "First step: 6x - x + 3 = 5 + 2x
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Algebra.Com's Answer #31751 by ChillyWiz282(3)![]() ![]() ![]() You can put this solution on YOUR website! Now you see, the problem 6x-(x+3)=5+2x can be rewritten as followed\r \n" ); document.write( "\n" ); document.write( " ---> 6x-1*(x+3)=5+2x\r \n" ); document.write( "\n" ); document.write( "Using the rules of Distrubtion, a*(b+c)=a*b+a*c yields 6x-x-3=5+2x. \n" ); document.write( "Notice that -1*(x+3)=(-1)*x+(-1)*(-1)3 \n" ); document.write( "Simplfying the problem gives us 5x-3=5+2x \n" ); document.write( "minus 3 to both sides gives us 5x=8+2x \n" ); document.write( "add 2x to both sides gives us 3x=8 \n" ); document.write( " x=8/3 or 2.66667\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |