Solve for X: Complex Rational Equation -8/(6(x+5)-2) = 1/(x+4)

Solve for X:

86×(x+5)2=1x+4 -\frac{8}{6\times(x+5)-2}=\frac{1}{x+4}

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:00 Find X
00:05 Multiply by denominators to eliminate fractions
00:28 Make sure to open parentheses properly, multiply by each factor
00:59 Group like terms
01:04 Arrange the equation so that X is isolated on one side
01:18 Group like terms
01:21 Isolate X
01:30 And this is the solution to the problem

Step-by-step written solution

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1

Understand the problem

Solve for X:

86×(x+5)2=1x+4 -\frac{8}{6\times(x+5)-2}=\frac{1}{x+4}

2

Step-by-step solution

Let's solve the equation step by step:

The given equation is:

86×(x+5)2=1x+4-\frac{8}{6 \times (x + 5) - 2} = \frac{1}{x + 4}

To eliminate the fractions, we can use cross-multiplication:

8×(x+4)=1×(6×(x+5)2)-8 \times (x + 4) = 1 \times (6 \times (x + 5) - 2)

Expanding both sides yields:

8(x+4)=6(x+5)2-8(x + 4) = 6(x + 5) - 2

Distribute the terms:

8x32=6x+302-8x - 32 = 6x + 30 - 2

Simplifying the right-hand side:

8x32=6x+28-8x - 32 = 6x + 28

To solve for x x , we isolate variables by moving terms with x x to one side:

Add 8x 8x to both sides:

32=14x+28-32 = 14x + 28

Subtract 28 from both sides to further isolate the terms with x x :

60=14x-60 = 14x

Finally, divide both sides by 14 to solve for x x :

x=6014x = -\frac{60}{14}

This is the simplified form of x x .

Therefore, the solution to the problem is:

x=6014 x = -\frac{60}{14} .

3

Final Answer

6014 -\frac{60}{14}

Practice Quiz

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Solve for X:

\( x - 3 + 5 = 8 - 2 \)

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