Question

Which equation is modeled below?

4 x tiles and 2 negative 1 tiles = 2 x tiles and 4 1 tiles.

2 x + (negative 2) = negative 2 x + 6
4 x + (negative 2) = negative 2 x + 6
2 x + 4 = 6 x + 2
Negative 2 x + 4 = 6 x + (negative 2)

Answer 1

Left side = 4x + (−1)*2 = 4x − 2. Right side = 2x + 4. So the modeled equation is

4x − 2 = 2x + 4.

Solving: 4x − 2 = 2x + 4 → 2x = 6 → x = 3.

None of the four given choices exactly match 4x − 2 = 2x + 4.