Question

find the value of xand y 2x -3y=8 ,x+y=12 tell me answer​

Answer 1

Answer:

x = 44/5 , y = 16/5

Step-by-step explanation:

Equation 1 : 2x - 3y = 8

Equation 2 : x + y = 12 ⇒ x = 12 - y

Put the value of x in Equation 1:

2x - 3y = 8

⇒2(12 - y) - 3y = 8

⇒24 - 2y - 3y = 8

⇒24 - 5y = 8

⇒24 - 8 = 5y

⇒y = 16/5

∵ x = 12 - y

⇒ 12 - 16/5

⇒ x = 44/5

Answer 2

Answer:

x=8.8 ; y=3.2

Step-by-step explanation:

x+y=12

x=12–y.–1st eq.

Put x in 2nd eq.

2(12–y)–3y=8

24–2y–3y=8

24–5y=8

24–8=5y

16=5y

y=16/5

y=3.2

Put value of y in 1st eq.

x=12-3.2

x=8.8