How do i change these into y=?
3x – 2y = –1 --> -2y= -1-3x
5x + 2y = 25 --> 2y= 25-5x
To change the given equations into "y = ?" form, you need to isolate the variable "y" on one side of the equation.
Let's start with the first equation:
3x - 2y = -1
To isolate "y", you'll need to get rid of the 3x term. Start by subtracting 3x from both sides of the equation:
3x - 2y - 3x = -1 - 3x
-2y = -1 - 3x
Now, to isolate "-2y", divide both sides of the equation by "-2":
(-2y) / -2 = (-1 - 3x) / -2
y = (1 + 3x) / 2
Therefore, the equation 3x - 2y = -1 can be written as y = (1 + 3x) / 2.
Now let's work with the second equation:
5x + 2y = 25
To isolate "y", you'll need to get rid of the 5x term. Start by subtracting 5x from both sides of the equation:
5x + 2y - 5x = 25 - 5x
2y = 25 - 5x
Now, to isolate "2y", divide both sides of the equation by 2:
(2y) / 2 = (25 - 5x) / 2
y = (25 - 5x) / 2
Therefore, the equation 5x + 2y = 25 can be written as y = (25 - 5x) / 2.