Question

• खालील एकसामायिक समीकरणे सोडवा.
3x - y = 7; x + 4y = 11​

Answer 1

Answer:

x = 3 , y= 2

Step-by-step explanation:

3x-y =7 ... .....1

x + 4y = 11 ........2

multiplyung .1 by 4

we get,

12x - 4y = 28 ....3

adding 2 and 3

we get

x + 4y = 11

+ 12x - 4y = 28

______________

13x = 39

x = 39 ÷ 13

therefore,

x = 3

substitung the vale of x = 3 in 2

therefore

(3) + 4y = 11

4y = 11-3

4y = 8

therefore

y = 8÷4

therefore

y =2

ans : (x,y) = (3,2)