7EE1 Expressions Study Guide #1-10

Simplify the expression: (5x + 8) + (2x + 7)

Simplify the expression: 4x - x - (-2x)

Amanda and Jeremy each wrote an expression using the variables x, y, and z.

Amanda’s Expression: 4x + 2y - z

Jeremy’s Expression: -5x + 4y - 3z

Write a simplified expression that represents the sum of Amanda and Jeremy’s expressions.

Simplify the expression, then factor: 10x - 4x + 12

Simplify the expression:  $\frac{1}{3}$   (9x - 27)

Simplify the expression: -3 (3x + 5)

Write a simplified expression to represent the perimeter of the triangle.

Simplify the expression: (4x - 5) - (3x - 8)

Simplify the expression: 4p + 2 (5p - 4)

Simplify the expression: 5x - 3y - 7x + 8y