Savvas Envision Gr. 7, Ch. 4 Review

Front

What is the result of simplifying the expression (6x - 2y - 5) - (5 + 9y - 8x)?

Back

14x - 11y

Front

Expand the expression: 3.5(-3n + 4)

Back

-10.5n + 14

Front

Simplify the expression: -6 + (-2d) + (-4d) + 3d

Back

-3d - 6

Front

If the area of a garden plot is represented by 84z - 54, what is the expression for the area of each of the six equal sections?

Back

14z - 9

Front

Hal earns n dollars per hour. After a 2% raise, what is the expression for his new pay per hour?

Back

1.02n

Front

What is the distributive property in mathematics?

Back

The distributive property states that a(b + c) = ab + ac.

Front

What does it mean to simplify an expression?

Back

To simplify an expression means to combine like terms and reduce it to its simplest form.

Front

What is a variable in algebra?

Back

A variable is a symbol, often a letter, that represents a number in mathematical expressions or equations.

Front

What is the difference between an expression and an equation?

Back

An expression is a combination of numbers, variables, and operations without an equality sign, while an equation states that two expressions are equal.

Front

What is the process of expanding an expression?

Back

Expanding an expression involves using the distributive property to remove parentheses and combine like terms.