Question

solve the equation of quadratic equation pls step by step i will mark you brainlest
pls​

Answer 1

Answer:

3/x-y/3

1/x-y/1

1y+1x

2xy

Answer 2

We need to solve a system equation,

$\begin{cases} & \rm\dfrac{3}{x}-\dfrac{y}{3}=2 \\ \\ & \rm\dfrac{2}{x}+\dfrac{y}{4}=7\end{cases}$

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Now, let $\rm A=\dfrac{1}{x}\ (x\neq0)$ and $\rm B=y$.

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The equation now is,

$\begin{cases} & \rm3A-\dfrac{B}{3}=2 \\ \\ & \rm2A+\dfrac{B}{4}=7\end{cases}$

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$\begin{cases} & \rm9A-B=6 \\ \\ & \rm8A+B=28\end{cases}$

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$\textbf{- Elimination Method}$

We know, adding two true equations leads to another true equation. That is where the main idea of the elimination method comes from!

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Now, let's solve!

$\rm(9A-B)+(8A+B)=6+28$

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$\rm17A=34$

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$\rm\therefore A=2\ and\ B=12$

Let's recall that,

$\rm\dfrac{1}{x}=2\ and\ y=12$

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$\rm\therefore x=\dfrac{1}{2},\ y=12$

$\Large\textrm{ \bigstar Ending the Question}$

I hope you understood the main idea of solving a system equation.

Here I want to add my opinion to the end of the answer.

"Mathematics is not just for solving questions, but to find the idea of solving."

Thanks for reading.