Answer:
y = -0.1, x = 1.6
Explanation:
Substitution is just stating one variable as another.
Lets use the first equation to substitute:
2x - 3 = -2y
2x = -2y - 3
x = -y - 1.5
Now, let's plug this in to the next equation
3x - 12y = -3
We use x as -y - 1.5 instead
3(-y - 1.5) - 12y = -3
-3y - 4.5 - 12y = -3
-15y = 1.5
y = -0.1
If we plug this back into the first equation we get x
2x - 3 = -2(-0.1)
2x - 3 = 0.2
2x = 3.2
x = 1.6
Hope this helped!