Question

Solve the following pair of linear: equation
3x-5Y = 4
2y+7=9x

Answer 1

here is ur answer:

3x-5Y = 4 ________________eq.1

2y+7=9x

9x - 2y = 7 _______________eq.2

eq.1 × 3 - eq.2

9x - 15y = 12

9x - 2y = 7

-...+.......-

____________

-13 y = 5

y =- 5/13

put y =- 5/13 in eq.1

$3x-5y = 4 \\ \\ 3x - 5 \times - \frac{5}{13} = 4 \\ \\ 3x + \frac{25}{13} = 4 \\ \\ 3x = 4 - \frac{25}{13} \\ \\ 3x = \frac{52 - 25}{13} \\ \\ 3x = \frac{27}{13} \\ \\ x = \frac{27}{13 \times 3} \\ \\ x = \frac{9}{13}$

hope it helps you!

Answer 2

hope this helps you