combining like terms/distributing

Simplify by combining like terms:
5a + 2b - 3a + 4

• 8a + 2b + 4
• 2a + 2b + 4
• 8ab
• 4ab + 4

Simplify the expression: 3x + 2x

• 5x
• x
• 6x
• 5

Simplify the expression: 2x + 1 + 7x 

• 10x
• 10
• 9x + 1
• 9 + 1x

Simplify the expression: 7v + 2 + 12 + 2v

• 23
• 23v
• 9 + 14v
• 9v + 14

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

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

2(4X-7)

• 8x-14
• 8x-7
• 6x+7
• 8x+14

2(4 + 9w) 

• 8+9w
• 2+9
• 8+18w
• 2+9w

-(6 - 4p) 

• 6-4p
• 6+4p
• -6+4p
• 6p-4

Like terms must have the same....

• coefficient
• variable
• constant

Which vocabulary term describes the number that is multiplied to the variable?

• Variable
• Coefficient 
• Constant