solve the following system of equation a. 2x + 2y - 5 \pi = -5 x - y + \pi = 3 -3x + y + 2 \pi = -2

1. to do manually, you can eliminate one variable from these three equations by making one variable from one equation equal to second or third equation.
and then you can repeat the process until a variable equal to a number.

2. you can use calculator. 

however, there is no solution to this system of equation due to the second equation.
x - y + *?*\pi = 3

*?* means need an integer value there.