If x=a+2b, y=2a-b, and z = -2b, what is x-y+2z?

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?

What are the solutions of the system? y = x^2 + 2x +3y = 4x - 2a. (-1, -6) and (-3, -14)b. (-1, 10) and (3, -6)c. no solutiond. (-1, -6) and (3, 10)

Select the graph of the solution. click until the correct graph appears. |x| = 3