What is the value of x in the equation 2x + 9 = 21? 2 6 9 15

2x + 9 = 21
isolate the x, do the opposite of PEMDAS, subtract 9 from both sides
2x + 9 (-9) = 21 (-9)

2x = 12
Divide 2 from both sides to isolate the x
2x/2 = 12/2
Divide
x = 12/2

x = 6

hope this helps 

In loving memory of Malkea

Answers: the graph is translated down 1 unit and the domain and range of g(x) is the same as the domain and range of f(x).