Question

if x=a,y=b is the solution of the equations x-y=2 and x+y=4 the the value of b is ?​

Answer 1

Answer:

Value of b is equals to 1.

Step-by-step explanation:

As x=a and y=b , then

⇒a−b=2............(1)

⇒a+b=4............(2)

Adding eq1 and eq2

⇒2a=6

⇒a = 6/2

a = 3

Substitute the value of a in eq1

⇒3−b=2

⇒−b=2−3

⇒b=1

Hence the value of a=3 and b=1

This is your answer dear mate.hope u understand.

Answer 2

Step-by-step explanation:

a-b =2........1

and

a+b =4 ........2

adding 1 and 2 we get ..

a-b+a+b =6

=> 2a =6

=> a=3

using this if we use it at equation 1 or 2 we get ...

3-b=2

=>b =1 .