Question

If x= a, y = b is the solution of the equations x - y = 2 and x + y = 4, then the values of a and bare, respectively​

Answer 1

Answer:

a=3 and b=1

Step-by-step explanation:

x - y = 2

a - b = 2 [given]

a = 2 + b -1 equation

Now, x + y = 4

a + b = 4

(2 + b) + b = 4 [from 1 equation ]

2 + b + b = 4

2b = 4 - 2

2b = 2

b = 2/2

b = 1 [2 equation ]

now, a - b = 2

a - 1 = 2. [from 2 equation ]

a = 2 + 1

a = 3