Answer: No, it is not a solution
Step-by-step explanation
(3,2) means x = 3 and y = 2 pair up together. Plug those values into the equation to see if we get a true result or not.
y = -2x
2 = -2*3
2 = -6
We get a false equation at the end, so the first equation must also be false for those x and y values mentioned.
Visually speaking, the point (3,2) is not on the line y = -2x. You can use a graphing calculator to confirm this.