Algebra Tiles Modeling Expressions

Which expression is represented?

• -2x + 4

• 4x - 2

• 2x + 4

• 2x - 4

Which expression is represented?

• 3x + 3

• 3x -2

• -3x + 3

• -3x - 2

What equation is modeled?

• 3 = 6

• 3x = 6

• x = 6

• 3 = 6x

What equation is modeled?  Solve the equation.

• 2x = -4    x = -2

• 2x = 4    x = 2

• 2x = 4    x = 8

Solve for x

• x = 4

• x = 1

• 2x = 4

• x = 2

In an equation or expression, the number that is being multiplied by the variable is better known as what?

• Coefficient 

• Term

• Variable

• Expression

Which equation and solution represents the model?

• 4x = 7; x = 28

• 7 = x - 4; x = 11

• 7 = x + 4; x = 3

• x + 4 = 3; x = 7

Which equation matches the picture above?

• c = 4

• 1 + 1 = 8

• 2 = 8

• 2C = 8

Simplify.

• 5x + 6

• 11x

• 11

• 6 - 5x

Which expression has a variable?

• 25/5

• 2+3x5

• 6n-2

• 4*8/2