document.write( "Question 1041726: I feel I should know this already sorry. But why multiply by 6? (1/6)x - (2/3)x;
\n" ); document.write( "if you put into like terms just multiply 2/3 by 2 for ((4/6)x \r
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\n" ); document.write( "\n" ); document.write( "Your 2nd eqn has no x term.
\n" ); document.write( " If you meant:
\n" ); document.write( " Y = (1/6)x + 3 and Y = (2/3)x + 0
\n" ); document.write( " ----
\n" ); document.write( " Since they both = y,
\n" ); document.write( " (1/6)x + 3 = (2/3)x
\n" ); document.write( " Multiply by 6
\n" ); document.write( " x + 18 = 4x
\n" ); document.write( " 3x = 18
\n" ); document.write( " x = 6
\n" ); document.write( " y = 4
\n" ); document.write( " --> (6,4)
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Algebra.Com's Answer #656664 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
Fractions are generally a pain. So if they are found in equations, it's usually a good idea to clear them out.\r
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\n" ); document.write( "\n" ); document.write( "Multiplying both sides by 6 will clear them out since 6 is the LCD (lowest common denominator)\r
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\n" ); document.write( "\n" ); document.write( "Notice how 6*(1/6) = 6/6 = 1. So that fraction goes away
\n" ); document.write( "Also, notice how 6*(2/3) = 12/3 = 4. That fraction goes away as well.\r
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\n" ); document.write( "\n" ); document.write( "So (1/6)x + 3 = (2/3)x turns into x + 18 = 4x. The two equations are equivalent\r
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\n" ); document.write( "\n" ); document.write( "Hopefully you agree that x + 18 = 4x is much simpler compared to (1/6)x + 3 = (2/3)x
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