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lyudmila [28]
3 years ago
6

9 – 4x = 2x whats the ancewer

Mathematics
2 answers:
zmey [24]3 years ago
5 0

Answer:

3/2 is the answer

Step-by-step explanation:

ololo11 [35]3 years ago
5 0

Answer:

x=1 1/2

Step-by-step explanation:

9-4x=2x

4x+2x=9

6x=9

x=9/6

x=3/2

x=1 1/2

Theres the answer hope this helps! :)

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<u>Methods to solve rational equation:</u>

Rational equation:

A rational equation is an equation containing at least one rational expression.

Method 1:

The method for solving rational equations is to rewrite the rational expressions in terms of a common denominator. Then, since we know the numerators are equal, we can solve for the variable.

For example,

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This can be used for rational equations with polynomials too.

For example,

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When the terms in a rational equation have unlike denominators, solving the equation will be as follows

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Method 2:

Another way of solving the above equation is by finding least common denominator (LCD)

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Factors of 4: 1\times2\times2

Factors of 8: 1\times2\times2\times2

The LCD of 4 and 8 is 8. So, we have to make the right hand side denominator as 8. This is done by the following step,

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we get,

\Rightarrow\frac{x+2}{8}=\frac{6}{8}

On cancelling 8 on both sides we get,

\Rightarrow(x+2)=6\rightarrow x=6-2\rightarrow x=4

Hence, these are the ways to solve a rational equation.

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