Question

if x=a and y=b is solution of equation x+y=6 and x-y=2 , then find values of a and b.​

Answer 1

Answer:

If x+y=6 x-y=2, what is the value of x and y?

25 Answers



Narendra Hadkar, Working as Insurance Advisor and Private Tutor (2001-present)

Answered 1 year ago

We have to solve both the equation simultaneously.

x+y=6. Equation I

x-y=2. Equation II

By adding eq. I &II, we get

x+y=6

x-y=2

________

2x+0=8

Now 2x=8

Therefore x=8÷2

Therefore x=4

Now substitute x= 4 in any of the equation

Let's put x=4 in equation I, we get,

x+y=6

Therefore 4+y=6

Therefore y=6–4

Therefore y= 2

Answer x=a=4 & y=b=2 is the answer of the given equation.

Just check the proof:

x+y=6

4+2=6

And

x-y=2

4–2=2

Answer 2

Answer:

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