Select the algebra tiles and expression that correctly model the phrase.


twice a number


2 boxes contain minus signs and 1 box contains x. The equation is 2 x.

2x

2 boxes contain x. The equation is 2 x.

2x

2 boxes contain plus signs and 1 box contains x. The equation is x + 2.

x + 2

2 boxes contain negative x. The equation is negative 2 x.

–2x