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Bezzdna [24]
3 years ago
9

Solve the rational equation 8/x+1/5=3/x

Mathematics
1 answer:
Natali5045456 [20]3 years ago
7 0
We are going to solve the rational equation \frac{8}{x+ \frac{1}{5} } = \frac{3}{x}

Step 1. Simplify the denominator of the left hand side of the equation:
\frac{8}{x+ \frac{1}{5} } = \frac{3}{x}
\frac{8}{ \frac{5x+1}{5} } = \frac{3}{x}
\frac{40}{5x+1} = \frac{3}{x}

Step 2. Multiply both sides of the equation by (5x+1) and x:
\frac{40}{5x+1}(5x+1)(x) = \frac{3}{x}(5x+1)(x)
40x=3(5x+1)
40x=15x+3

Step 3. Subtract 15x from both sides of the equation:
40x-15x=15x-15x+3
25x=3

Step 4. Divide both sides of the equation by 25:
\frac{25x}{25} = \frac{3}{25}
x= \frac{3}{25}

We can conclude that the solution of the rational equation is x= \frac{3}{25}
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Answer:

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Step-by-step explanation:

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Also, because this is a 45-45-90 triangle, you don't really have to do all that work. If it's a 45-45-90 triangle, both legs should be the same length. :)

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