Find the value of y in the equation - 2-3y-4y-9y-8y-7-4-5

The correct option is C 38 Given, (2 3y)+4y/9y (8y+7)=4/5 ⇒2+y/y 7=4/5 ⇒ 5(2+y)=4(y 7) ....( cross multiplying ) ⇒ 10+5y=4y 28 ⇒ ...

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Standard VIII

Mathematics

Reducing Equations to Simpler Form

Find the valu...

Question

Find the value of $y$ in the equation :
$\frac{(2 - 3 y) + 4 y}{9 y - (8 y + 7)} = \frac{4}{5}$

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Solution

The correct option is C $- 38$
Given, $\frac{(2 - 3 y) + 4 y}{9 y - (8 y + 7)} = \frac{4}{5}$
$\Rightarrow \frac{2 + y}{y - 7} = \frac{4}{5}$
$\Rightarrow 5 (2 + y) = 4 (y - 7)$ ....( cross multiplying )
$\Rightarrow 10 + 5 y = 4 y - 28$
$\Rightarrow y = - 38$
Hence,. the solution is $y = - 38$

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Similar questions

\frac{y - (7 - 8 y)}{9 y - (3 + 4 y)} = \frac{2}{3}

Q. The perimeter of a triangle is

8 y^{2} - 9 y + 4

and its two sides are

3 y^{2} - 5 y

and

4 y^{2} + 12

, then its third sides is

y^{m} - 4 y - 8

.
Value of

m

Verify division algorithm i.e., Dividend = Divisor $\times$ Quotient + Remainder, in each of the following. Also, write the quotient and remainder :

$\begin{matrix} (i) & 14 x^{2} + 13 x - 15 & 7 x - 4 (i i) & 15 z^{2} - 20 z^{2} + 13 z - 12 & 3 z - 6 (i i i) & 6 y^{5} - 28 y^{3} + 3 y^{2} + 30 y - 9 & 2 y^{2} - 6 (i v) & 34 x - 22 x^{3} - 12 x^{4} - 10 x^{2} - 75 & 3 x + 7 (v) & 15 y^{4} - 16 y^{3} + 9 y^{2} - \frac{10}{3} y + 6 & 3 y - 2 (v i) & 4 y^{3} + 8 y + 8 y^{2} + 7 & 2 y^{2} - y + 1 (v i i) & 6 y^{5} + 4 y^{4} + 4 y^{3} + 7 y^{2} + 27 y + 6 & 2 y^{3} + 1 \end{matrix}$

Solve the following equations and verify your answer :

$\frac{y - (7 - 8 y)}{9 y - (3 + 4 y)} = \frac{2}{3}$

Find the equation of line ⏊ to 4 + 3y = 5 & passing through the point where the line 5 – 6y = 30 cuts the – axis.

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Find the value of y in the equation : (2−3y)+4y9y−(8y+7)=45

The correct option is C −38Given, (2−3y)+4y9y−(8y+7)=45⇒2+yy−7=45⇒5(2+y)=4(y−7) ....( cross multiplying )⇒10+5y=4y−28⇒y=−38Hence,. the solution is y=−38

Find the value of $y$ in the equation :
$\frac{(2 - 3 y) + 4 y}{9 y - (8 y + 7)} = \frac{4}{5}$

The correct option is C $- 38$
Given, $\frac{(2 - 3 y) + 4 y}{9 y - (8 y + 7)} = \frac{4}{5}$
$\Rightarrow \frac{2 + y}{y - 7} = \frac{4}{5}$
$\Rightarrow 5 (2 + y) = 4 (y - 7)$ ....( cross multiplying )
$\Rightarrow 10 + 5 y = 4 y - 28$
$\Rightarrow y = - 38$
Hence,. the solution is $y = - 38$