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5/(x + 3) + 4/(x + 2) = 2

1 Answer

1 vote

Answer: x =
-(5)/(2), 2

Explanation:

We will solve for x in the given equation.

Given:


\displaystyle (5)/((x + 3))+(4)/((x + 2)) = 2

Get common denominators:


\displaystyle (5(x + 2))/((x + 3)(x + 2))+(4(x + 3))/((x + 3)(x + 2)) = 2

Addition:


\displaystyle (5(x + 2)+4(x + 3))/((x + 3)(x + 2)) = 2

Multiply both sides of the equation by (x+3)(x+2):

5(x + 2) + 4(x + 3) = 2(x + 3)(x + 2)

Distribute and multiply:

5x + 10 + 4x + 12 = 2x² + 10x + 12

Get all terms on one side of the equation by subtracting from both sides:

-2x² + 5x - 10 x+ 10 + 4x + 12 - 12 = 0

Simplify by combing like terms:

-2x² - x + 10 = 0

Factor:

-1(x - 2)(2x + 5) = 0

Solve for x:

x =
-(5)/(2), 2

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