Answer:
D. 3
Step-by-step explanation:
Assuming the model represents an equation, the following can be deduced:
On the left side of the equation, the model shows we have 3 "x's", and 6 "1's". Let this represent:
3x + 6
On the right side of the equation, we have 2 "x's" and 9 "1's". Let this represent:
2x + 9.
The model would represent the equation below:
[tex] 3x + 6 = 2x + 9 [/tex]
Solve for x
[tex] 3x + 6 - 2x = 2x + 9 - 2x [/tex] (Subtracting 2x from both sides of the equation)
[tex] x + 6 = 9 [/tex]
[tex] x + 6 - 6 = 9 - 6 [/tex] (subtracting 6 from both sides of the equation)
[tex] x = 3 [/tex]
