Question

If x+y=2500 and x-y=2500 then the value of x is

a)2500
b)5000
c)3000
d)4000​

Answer 1

Answer:

a) 2500

Step-by-step explanation:

x=2500 and y=0

x-y=2500-0=2500

x+y=2500+0=2500

Answer 2

Given - x+y=2500 and x-y=2500

Find - Value of x

Solution - Let us say x+y=2500 to be equation 1 and x-y=2500 to be equation 2.

From equation 2, taking value of x-> x = 2500 + y

Keeping the value of x from equation 2 in equation 1.

So, new equation will be -

2500 + y + y = 2500

Solving it to find the value of y

2y = 0

y = 0

Now, keeping the value of y in equation 1 to find the value of x.

x + 0 = 2500

x = 2500

Thus, value of x is a)2500