document.write( "Question 277833: 1. Solve for x. 3/10 = 5/x where / means a fraction bar.
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document.write( "2. Divide and simplify: The fraction (x^2-4)/(x) divided by the fraction
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document.write( " (4x - 8) / (x)
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document.write( "3. Add and simplify: The fraction 4/(a^2 -1) + the fraction (1)/(2a + 2)
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document.write( "4. Using the LCD, solve: 3 + the fraction (1)/(x - 2) = the fraction
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document.write( " (2x - 3) / (x - 2)
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document.write( " Show use of the LCD.
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Algebra.Com's Answer #202231 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! 1. Solve for x. 3/10 = 5/x \n" ); document.write( "cross multiply \n" ); document.write( "3x=5*10 \n" ); document.write( "3x=50 \n" ); document.write( "x=50/3 \n" ); document.write( "x=16 2/3 ans \n" ); document.write( " \n" ); document.write( "2. Divide and simplify: The fraction (x^2-4)/(x) divided (4x-8)/(x) \n" ); document.write( "Invert the denominator & multiply. \n" ); document.write( "(x^2-4)/x*x/(4x-8) cross multiply \n" ); document.write( "(x^2-4)/4(x-2) \n" ); document.write( "(x+2)(x-2)/(x-2) cancel out the (x-2 terms. \n" ); document.write( "x+2 ans. \n" ); document.write( " \n" ); document.write( "3. Add and simplify: The fraction 4/(a^2-1)+(1)/(2a+2) \n" ); document.write( "Find the LCD (a^2-1)(2a+2) \n" ); document.write( "[4(2a+2)+(a^2-1)]/(a^2-1)(2a+2) \n" ); document.write( "[4*2(a+1)+(a+1)(a-1)]/(a+1)(a-1)*2(a+1) \n" ); document.write( "[(8+1)(a+1)(a-1)]/3(a+1)(a-1) \n" ); document.write( "[8(a+1)(a-1)]/3(a+1)(a-1) cancel out 3(a+1) & (a-1) \n" ); document.write( "5(a+1) ans.\r \n" ); document.write( "\n" ); document.write( "4. Using the LCD, solve: 3+(1)/(x-2)=(2x-3)/(x-2) \n" ); document.write( "LCD=(x-2) \n" ); document.write( "3(x-2)+1/(x-2)=(2x-3)/x-2) \n" ); document.write( "[3x-6+1]/(x-2)=(2x-3)/(x-2) cancel out the denominators. \n" ); document.write( "3x-5=2x-3 \n" ); document.write( "3x-2x=-3+5 \n" ); document.write( "x=2 ans. \n" ); document.write( "Proof is not valid because (2-2)=0 & you cannot divide by 0. \r \n" ); document.write( "\n" ); document.write( " Show use of the LCD. \n" ); document.write( " \n" ); document.write( " |