Algebraic expressions and Linear equations

Evaluate 3x + 8   if x = 2

• 13
• 14
• 15
• 16

Evaluate when a = 15:
2(a - 5) + 2

• 22
• 27
• 14
• 7

In the expression 3p + 4, what is the word for the number 3?

• term

• coefficient

• product

• sum

• Three

• Five

• Two

• One

Identify the variable(s) in the expression 3x +  9

• x
• y
• 9
• 3x

9x + 8x

• 72x

• 1x

• 17x

• -1x

x + 1 + 3x

• 3x + 1

• 4x + 1

• 3x + 4

• 5x + 3

4x - 3 + 2 - 2x

• 6x + 5

• 2x + 1

• 2x - 1

• 6x - 1

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

• 5x + 10y
• 5x + 4y
• 5x - 4y
• 5x -10y

Solve for x if x+5=9

• 5

• 4

• 15

• -14