12 questions
x = 2
x = 7/2
x = -2
x = 4
x = 2
x = 3
x = -8
x = 8
x = -4, 1
x = -4
x = 1
no solution
x = 8
x = 16
x = -8
x = -16
no solution
x = 2
x = -2
x = 8
x = -5
x = 5
x = 2
x = 8
x = -15
x = 3
x = 6
x = -6
x = -4
x = 4
no solution
x = 6
no solution
x = 5
x = -5
x = -18