2х+3y=7 -2x+15y=8

To solve the given system of equations:

1. We can start by multiplying the first equation by 2 to eliminate the x term: 2*(2x + 3y = 7) simplifies to 4x + 6y = 14.

2. Next, we can add the modified first equation to the second equation: (4x + 6y = 14) + (-2x + 15y = 8) simplifies to 2x + 21y = 22.

3. Now, we can divide the third equation by 2 to solve for x: (2x + 21y = 22)/2 simplifies to x + (21/2)y = 11.

4. Finally, we have a new simplified system of equations: x + (21/2)y = 11 -2x + 15y = 8.

Now you can solve this new system of equations using methods such as substitution or elimination to find the values of x and y.