6th Grade Algebra Review

A mathematical sentence that contains an equal sign is called an...

• expression

• equal

• equivalent

• equation

Which answer contains like terms?

• 4x and 7x

• 3y and 3x

• 4x² and 4x

• 52 and 9z

Operations that "undo" each other are called...

• like terms

• opposite operations

• inverse operations

• backwards operations

A _______ is a symbol, usually a letter, that is used to represent an unknown number.

• solution

• coefficient

• variable

• solution

Combine like terms: 4x - 2x + 6y + 3y

• 6x + 9y

• 6x - 9y

• 2x + 9y

• 2x - 9y

When you flip the numerator and the denominator it is called...

• fraction

• reciprocal

• whole number

• opposite ends

The inverse of addition is...

• addition

• subtraction

• multiplication

• division

The inverse of multiplication is...

• addition

• subtraction

• multiplication

• division

Combine like terms: 12x+7y - 3x - 2y

• 9x -5y

• 9x + 5y

• 15x + 9y

• 15x - 9y

What is the expression for the following statement:

The sum of a number and 17

• x-17

• 17x

• 17^x

• x + 17