Question

2 - 7/1 - 5x =3 + 7x/ 4 + 5x

Answer 1

$\textbf{Solution :}$
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$2 - \frac{7}{1} - 5x = 3 + \frac{7x}{4} + 5x \\ \\ = > 2 - 7 - 5x = \frac{12 + 7x + 20x}{4} \\ \\ = > 4(2 - 7 - 5x) = 12 + 7x + 20x \\ \\ = > 8 - 28 - 20x = 12 + 7x + 20x \\ \\ = > - 20 - 12 = 27x + 20x \\ \\ = > - 32 = 47x \\ \\ = > \frac{ - 32}{47} = x$

$\textbf{Answer :}$
___________

$x = - \frac{32}{47}$

$\textbf{Conclusion :}$
____________

When we transform a number from LHS to RHS or from RHS to LHS—

( - ) becomes ( + )

( + ) becomes ( - )

( × ) becomes ( ÷ )

( ÷ ) becomes ( × )

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Answer 2

$2 - 7 - 5x = \frac{12 + 7x + 20x}{4} \\ \\ - 20 - 20x = 12 + 27x \\ \\ 47x = - 32 \\ \\ x = - \frac{32}{47}$