Expressions & Equations (7th Gr)

In math, this basically means opposite

• inverse

• equation

• expression

• constant

A letter used to represent a number value in an expression or an equation

• term

• coefficient

• constant

• variable

Which of the following is NOT equivalent to 42x + 24?

• 2(21x + 12)

• 3(14x + 8)

• 6(7x + 4)

• 7(6x + 17)

A quantity that stands alone; value does not change. 

• sum
• constant
• coefficient
• quotient

An algebraic equation is....

• A math statement that does not have an equal sign.
• A math statement with an equal sign. 
• A letter or symbol that represents a number.
• A number that can evenly go into another number without a remainder.

An algebraic expression is .......

• A math statement with an equal sign.
• A math statement without an equal sign.
• A letter or symbol that represents a number.
• A number that goes evenly into another number without a remainder.

Simplify the following expression:
3 + 5x + 8 - 2x

• -3x² - 11
• 3x² + 11
• 11 - 3x
• 11 + 3x

Simplify:
5x - 6x - 8x + 7 

• -9x + 7
• 10x + 7
• 9x + 7 
• 9x - 7

5a - 6b + 4a + 3b

• 9a - 3b
• a + b
• 6ab
• -b + a

Simplify the expression: 3x - 2y - 8 + 2 - 3x -3y

• 6x - 5y + 10

• -5y - 10

• 6x - y - 6

• -5y - 6