document.write( "Question 206626: I just wanted to make sure that I solved these correctly\r
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document.write( "5/8X + 1/16X= 5/16 + X The solution is X= 1/32\r
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document.write( "also,\r
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document.write( "Use the distributive property to help you solve the equation\r
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document.write( "3(w-5)=6 W=___ ( I came up with W= 7) \r
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document.write( "Solve using the multiplication principle. \r
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document.write( "11X = -99 the solutionis X=-9 (Is this correct)\r
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document.write( "Thank you \n" );
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Algebra.Com's Answer #156171 by Theo(13342)![]() ![]() You can put this solution on YOUR website! PROBLEM 1 \n" ); document.write( "----- \n" ); document.write( "5/8X + 1/16X= 5/16 + X The solution is X= 1/32 \n" ); document.write( "----- \n" ); document.write( "if i understand the problem correctly, your equation is: \n" ); document.write( " \n" ); document.write( "----- \n" ); document.write( "i could not verify your answer as correct. \n" ); document.write( "----- \n" ); document.write( "i would have solved as follows: \n" ); document.write( "----- \n" ); document.write( " \n" ); document.write( "multiply both sides of the equation by 16x to get: \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "----- \n" ); document.write( "i used the quadratic formula to get a solution of: \n" ); document.write( "x = -1 or x = .6875 \n" ); document.write( "----- \n" ); document.write( "substituting in the original equation of \n" ); document.write( "----- \n" ); document.write( "if we let x = -1, then \n" ); document.write( "----- \n" ); document.write( "This becomes -(5/8) - (1/16) = (5/16) - 1 \n" ); document.write( "which becomes -11/16 = -11/16 confirming x = -1 is correct. \n" ); document.write( "----- \n" ); document.write( "if we let x = .6875, then \n" ); document.write( "----- \n" ); document.write( "This becomes .90909090909... + .0909090909091... = .3125 + .6875 \n" ); document.write( "which becomes 1 = 1 confirming x = .6875 is also correct. \n" ); document.write( "----- \n" ); document.write( "a graph of this equation would look like this: \n" ); document.write( " \n" ); document.write( "----- \n" ); document.write( "an alternative interpretation of this problem would be: \n" ); document.write( " \n" ); document.write( "----- \n" ); document.write( "i would have solved as follows: \n" ); document.write( "multiply both sides of this equation by 16 to get: \n" ); document.write( " \n" ); document.write( "11x = 5 + 16x \n" ); document.write( "subtract 11x from both sides and subtract 5 from both sides to get: \n" ); document.write( "5x = -5 \n" ); document.write( "divide both sides by 5 to get: \n" ); document.write( "x = -1 \n" ); document.write( "----- \n" ); document.write( "substitute in the original equation of 11x = 5 + 16x gets -11 = -11 confirming the answer is correct. \n" ); document.write( "----- \n" ); document.write( "PROBLEM 2 \n" ); document.write( "----- \n" ); document.write( "3(w-5)=6 W=___ ( I came up with W= 7) \n" ); document.write( "----- \n" ); document.write( "this looks good. \n" ); document.write( "substituting in your original equation we get: \n" ); document.write( "3*(7-5) = 6 \n" ); document.write( "which becomes 3*2 = 6 which becomes 6 = 6 which means w = 7 is good. \n" ); document.write( "----- \n" ); document.write( "PROBLEM 3 \n" ); document.write( "----- \n" ); document.write( "11X = -99 the solution is X=-9 (Is this correct) \n" ); document.write( "----- \n" ); document.write( "this also looks good. \n" ); document.write( "substituting in your original equation we get: \n" ); document.write( "11*(-9) = -99 which becomes -99 = -99 which means x = -9 is good. \n" ); document.write( "----- \n" ); document.write( " \n" ); document.write( " |