document.write( "Question 206626: I just wanted to make sure that I solved these correctly\r
\n" ); document.write( "\n" ); document.write( "5/8X + 1/16X= 5/16 + X The solution is X= 1/32\r
\n" ); document.write( "\n" ); document.write( "also,\r
\n" ); document.write( "\n" ); document.write( "Use the distributive property to help you solve the equation\r
\n" ); document.write( "\n" ); document.write( "3(w-5)=6 W=___ ( I came up with W= 7) \r
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\n" ); document.write( "\n" ); document.write( "Solve using the multiplication principle. \r
\n" ); document.write( "\n" ); document.write( "11X = -99 the solutionis X=-9 (Is this correct)\r
\n" ); document.write( "\n" ); document.write( "Thank you
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Algebra.Com's Answer #156171 by Theo(13342)\"\" \"About 
You can put this solution on YOUR website!
PROBLEM 1
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\n" ); document.write( "5/8X + 1/16X= 5/16 + X The solution is X= 1/32
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\n" ); document.write( "if i understand the problem correctly, your equation is:
\n" ); document.write( "\"5%2F%288x%29+%2B+1%2F%2816x%29+=+5%2F16+%2B+x\"
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\n" ); document.write( "i could not verify your answer as correct.
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\n" ); document.write( "i would have solved as follows:
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\n" ); document.write( "\"5%2F%288x%29+%2B+1%2F%2816x%29+=+5%2F16+%2B+x\"
\n" ); document.write( "multiply both sides of the equation by 16x to get:
\n" ); document.write( "\"10+%2B+1+=+5x+%2B+16x%5E2\" which becomes:
\n" ); document.write( "\"11+=+5x+%2B+16x%5E2\" which becomes:
\n" ); document.write( "\"16x%5E2+%2B+5x+-+11+=+0\"
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\n" ); document.write( "i used the quadratic formula to get a solution of:
\n" ); document.write( "x = -1 or x = .6875
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\n" ); document.write( "substituting in the original equation of \"5%2F%288x%29+%2B+1%2F%2816x%29+=+5%2F16+%2B+x\" should confirm the answer as correct.
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\n" ); document.write( "if we let x = -1, then \"5%2F%288x%29+%2B+1%2F%2816x%29+=+5%2F16+%2B+x\" becomes \"5%2F%288%2A%28-1%29%29+%2B+1%2F%2816%2A%28-1%29%29+=+5%2F16+%2B+%28-1%29\"
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\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.
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\n" ); document.write( "if we let x = .6875, then \"5%2F%288x%29+%2B+1%2F%2816x%29+=+5%2F16+%2B+x\" becomes \"5%2F%285.5%29+%2B+1%2F%2811%29+=+5%2F16+%2B+.6875\"
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\n" ); document.write( "This becomes .90909090909... + .0909090909091... = .3125 + .6875
\n" ); document.write( "which becomes 1 = 1 confirming x = .6875 is also correct.
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\n" ); document.write( "a graph of this equation would look like this:
\n" ); document.write( "\"graph%28600%2C600%2C-5%2C5%2C-100%2C100%2C16x%5E2%2B5x-11%29\"
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\n" ); document.write( "an alternative interpretation of this problem would be:
\n" ); document.write( "\"%285%2F8%29%2Ax+%2B+%281%2F16%29%2Ax+=+5%2F16+%2B+x\"
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\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( "\"10x+%2B+x+=+5+%2B+16x\" which becomes:
\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
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\n" ); document.write( "substitute in the original equation of 11x = 5 + 16x gets -11 = -11 confirming the answer is correct.
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\n" ); document.write( "PROBLEM 2
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\n" ); document.write( "3(w-5)=6 W=___ ( I came up with W= 7)
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\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.
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\n" ); document.write( "PROBLEM 3
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\n" ); document.write( "11X = -99 the solution is X=-9 (Is this correct)
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\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.
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