Answer :

Answer:

X = 25.5

y = 8.5

Step-by-step explanation:

Equation 1: X + y = 34

Equation 2: X - y = 17

We can solve this system using the method of elimination. Adding Equation 1 and Equation 2 eliminates the variable "y" and allows us to solve for "X".

Adding the two equations, we get:

(X + y) + (X - y) = 34 + 17

2X = 51

Dividing both sides of the equation by 2, we have:

X = 51/2

X = 25.5

Now, we can substitute the value of X back into one of the original equations to solve for "y". Let's use Equation 1:

25.5 + y = 34

Subtracting 25.5 from both sides:

y = 34 - 25.5

y = 8.5