Question

निम्न समीकरण को युग्म को प्रेस्थपं विधि से हल कीजिए ( 1) 4x - 5y =-16 ( 2 ) 2x + y =6​

Answer 1

Step-by-step explanation:

always focus own work not other work.

Answer 2

Answer:

x = 1 & y = 4

Step-by-step explanation:

Diya hai, 4x - 5y = -16 ...(i)

2x + y = 6 ...(ii)

Samikaran (i) se,

4x - 5y = -16

=> 4x = 5y-16

=> 4x = 5y-16

x = (5y-16)/4 ...(iii)

x ka maan (ii) me rakhane par,

2x + y = 6

$\frac{2(5y - 16)}{4} + y = 6 \\ = > \frac{10y - 32 + 4y}{4} = 6 \\ = > 14y - 32 = 24 \\ = > 14y = 32 + 24 \\ = > 14y = 56 \\ y = \frac{56}{14} = 4$

y ka maan (iii) me rkhane par,

x = (5y-16)/4

$= \frac{(5 \times 4 - 16)}{4} \\ = \frac{20 - 16}{4} \\ = \frac{4}{4} \\ = 1$

Therefore, x = 1 & y = 4.