Question

. Find the value of x and y: 3x + 2y = 7 and 2x – 5y + 8 = 0.​

Answer 1

Answer:

अतःy=14/29 औरx= 525/3 होगा ।

Answer 2

Answer:

$\sf \implies 3x + 2y = 7 \: \: \: \: \: \: \: \: - (i)$

$\sf \implies 2x + 5y = 8 \: \: \: \: \: \: \: - (ii)$

Equation (i) multiply by 2 We get,

$\sf \implies \: 6x + 4y = 14 \: \: \: \: \: \: \: - (iii)$

Equation (ii) multiply by 3 We get,

$\sf \implies \: 6x - 15y = 24 \: \: \: \: \: \: \: \: - (iv)$

Subtract (iii) and (iv) We get,

$\sf \implies \: 19y = 14$

$\sf \implies \: y = \frac{19}{14}$

Putting A value of y in Equation (iii) We get.

$\sf \implies \: 3x + 2 (\frac{14}{19} ) = 7$

$\sf \implies \: 3x + 28 \: (19) = 7$

$\sf \implies \: 3x + 532 = 7$

$\sf \implies \: 3x = 7 - 525$

$\sf \implies \: 3x = - 525$

$\sf \implies \: x = \frac{525}{3}$

$\pink{Hence, \: This \: is \: Answer}$

\pink{x,y} =(525/3, 19/14)