15x+2y=76 y=-2,5x

To solve this system of equations, we can substitute the second equation into the first equation:

15x + 2(-2.5x) = 76

Simplify and solve for x:

15x - 5x = 76

10x = 76

x = 7.6

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

y = -2.5(7.6) y = -19

Therefore, the solution to the system of equations is x = 7.6 and y = -19.