Adding and Subtracting with Combining Like Terms

3x + 7x

• 10x

• 4x

• -4x

• -10x

3x - 7x

• 10x

• 4x

• -4x

• -10x

5a + b + 4a + b

• a + 2b

• a

• 9a - 2b

• 9a + 2b

What is the definition of a coefficient?

• The letter used to represent a quantity
• The little number or letter used to raise to a power
• The number in front of a variable
• The number in back of a variable

Simplify the expression:

4x+(-2x)

• 6x

• -6x

• 2x

• -8x

Simplify the expression.

7x+(-9x)

• -63x

• -2x

• 16x

• -16x

Simplify the expression.

(-10y)+3y

• -7y

• 7y

• 13y

• -13y

- 3x - 7x

• 10x

• 4x

• -4x

• -10x

- 3x + 7x

• 10x

• 4x

• -4x

• -10x

Are the following terms 'like' or 'unlike'....

7a²

2a

• Like

• Unlike