The model below represents the equation 2x + 3 = 11.

Question

What is the first step in finding the value of x?
A.
Add 11 cubes to each side of the model
B.
Divide the cubes equally among the 2 cups
C.
Subtract 3 cubes from each side of the model
D.
Add 3 cubes to each side of the model

Answer 1

2 x + 3 = 11
3 = 3
------------------ subtract
so 2 x = 8