Solve the following equations.
$ \frac{9 x}{7-6 x}=15 $.

AcademicMathematicsNCERTClass 8

Given:

\( \frac{9 x}{7-6 x}=15 \)

To do: 

We have to solve the given equation.

Solution:

$ \frac{9 x}{7-6 x}=15$

$\Rightarrow 9x=15 \times(7-6x)$                [On cross multiplication]

$\Rightarrow 9x=105-90x$

$\Rightarrow 9x+90x=105$

$\Rightarrow 99x=105$

$\Rightarrow x=\frac{105}{99}$

$\Rightarrow x=\frac{35}{33}$

The value of $x$ is $\frac{35}{33}$.

raja
Updated on 10-Oct-2022 13:47:38

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