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Mathematics 10 Online
OpenStudy (inowalst):

Rational Equation

OpenStudy (inowalst):

\[\frac{ 11 }{ 8x }-\frac{ 1 }{ x+3 }=\frac{ 3 }{ 4x }\]

OpenStudy (acxbox22):

first find a common denominator

OpenStudy (inowalst):

Okay, but what about the x+3?

OpenStudy (amorfide):

he means to find a common denominator for the left hand side, then you will multiply by that denominator on both sides, then solve for x

OpenStudy (triciaal):

your denominators are 8x, x+3 and 4x

OpenStudy (triciaal):

4x is a factor of 8x so the common denominator will be 8x*(x+3)

OpenStudy (triciaal):

multiply each term by the common denominator. because the denominator will be the same you can equate the numerators. simplify and solve.

OpenStudy (anonymous):

Here's s a simple example\[\frac{ a}{ b }+\frac{c}{d}=\frac{d}{d}*\frac{a}{b}+\frac{b}{b}*\frac{c}{d}= \frac{ad}{bd}+\frac{cb}{bd}=\frac{ad+cb}{bd}\] Now let a= 11, b = 8x, c= 1, d= x+3. Combine like terms when you're done.

OpenStudy (inowalst):

Sorry, I had to go, but okay. @triciaal

OpenStudy (anonymous):

11(x+3)-8x-6(x+3) =0 x=5

OpenStudy (triciaal):

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