Question

2x + 6] -4=20

x= 9 and x = 11
x= - 9 and x = 15
x= 9 and x = - 15
no solution

Answer 1

@tkhunny

Answer 2

@tunahan

Answer 3

Still not quite sure what we're supposed to be doing, here. Equations with only one solution aren't normally given multiple-solution choices.