2x-15y=-10
-4x+5y=-30
solve for y
To solve for y, we can use the elimination method.
First, we'll multiply the first equation by 2 to make the coefficients of x in both equations the same and therefore we can eliminate x when we subtract the equations.
Equation 1: 2(2x - 15y) = 2(-10)
4x - 30y = -20
Now, we'll rewrite the second equation:
-4x + 5y = -30
Adding the two equations together:
4x - 30y + (-4x + 5y) = -20 + (-30)
-25y = -50
Now, we can solve for y:
-25y = -50
y = -50 / -25
y = 2
Therefore, the solution for y is y = 2.