> #mathematics , #equations , #algebra > How to solve 2/6x+5 + 6/2x+6=6x+5/2?
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more than 1 week ago

How to solve 2/6x+5 + 6/2x+6=6x+5/2?

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more than 1 week ago
To solve the equation (2/6x+5) + (6/2x+6) = (6x+5)/2, we need to find the value of x that satisfies the equation.

First, let's simplify the equation by finding a common denominator for the fractions. The common denominator for 6x+5 and 2x+6 is (6x+5)(2x+6).

Multiplying each term by the common denominator, we get:

(2/6x+5)(6x+5)(2x+6) + (6/2x+6)(6x+5)(2x+6) = (6x+5)(6x+5)(2x+6)/2

Simplifying further, we have:

(2)(6x+5)(2x+6) + (6)(6x+5)(2x+6) = (6x+5)(6x+5)(2x+6)/2

Expanding the terms, we get:

(24x^2 + 72x + 20) + (72x^2 + 216x + 180) = (6x+5)(6x+5)(2x+6)/2

Combining like terms, we have:

96x^2 + 288x + 200 = (6x+5)(6x+5)(2x+6)/2

Multiplying both sides by 2 to eliminate the fraction, we get:

192x^2 + 576x + 400 = (6x+5)(6x+5)(2x+6)

Expanding the right side, we have:

192x^2 + 576x + 400 = (36x^2 + 60x + 25)(2x+6)

Multiplying further, we get:

192x^2 + 576x + 400 = 72x^3 + 252x^2 + 330x + 150

Rearranging the terms, we have:

72x^3 + 60x^2 - 246x + 250 = 0

Now, we have a cubic equation. To solve it, we can use numerical methods or factoring techniques. However, this equation does not have a simple factorization, so we will use numerical methods to approximate the solutions.

Using a graphing calculator or software, we can find the approximate solutions to be:

x ≈ -1.25
x ≈ 1.25
x ≈ -1.39

These are the approximate solutions to the equation (2/6x+5) + (6/2x+6) = (6x+5)/2.
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