Question

solve equation x+y=12 and x-y=8​

Answer 1

Answer:

x = 10

y = 2

Step-by-step explanation:

Given equations :

1st equation : x + y = 12

2nd equation : x - y = 8

Now,

Adding both the above equation, we get

→ (x + y) + (x - y) = 12 + 8

→ x + y + x - y = 12 + 8

→ 2x = 20

→ x = 20/2

→ x = 10

Putting this value in 1st equation, we get

→ (10) + y = 12

→ 10 + y = 12

→ y = 12 - 10

→ y = 2

Answer 2

Answer:

x+y=12 and x-y=8

Solution

x+y=12 (1)

x-y=8 (2)

Adding equation (1) and (2) , we get,

x+y=12 (1)

x-y=8 (2)

------------

2x= 20

x= 20/2

x=10

Substituting x=10 in equation (1), we get,

x+y=12 (1)

10+y=12

y=12-10

y=2

Answer:

x=10 and y=2 is the solution of given simultaneous equation.