Solve the simultaneous equation ×-2y=10,? 3×+2y=10?

To solve this system of equations, we can use the method of elimination.

First, let's add the two equations together to eliminate the variable y:

(x - 2y) + (3x + 2y) = 10 + 10
4x = 20
x = 5

Now that we have found the value of x, we can substitute it back into one of the original equations to solve for y. Let's use the first equation:

5 - 2y = 10
-2y = 5
y = -5/2

Therefore, the solution to the simultaneous equations is x = 5 and y = -5/2.