Given, 3 4x4 5x=79 ⇒ 9(3 4x)=7(4 5x) ⇒ 27 36x=28 35x ⇒ 36x+35x=28 27 ⇒ x=1 ∴ x= 1 ...

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Numbers in General Form

Solve: 3-4x...

Question

Solve: $\frac{3 - 4 x}{4 - 5 x} = \frac{7}{9}$

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Solution

Given, $\frac{3 - 4 x}{4 - 5 x} = \frac{7}{9}$

$\Rightarrow 9 (3 - 4 x) = 7 (4 - 5 x)$

$\Rightarrow 27 - 36 x = 28 - 35 x$

$\Rightarrow - 36 x + 35 x = 28 - 27$

$\Rightarrow - x = 1$

$∴ x = - 1$

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Solve : $5 x - (4 x + \frac{5 x - 4}{7}) = \frac{4 x - 14}{3} .$

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