Algebra Combining Like Terms

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

• 8a + 2b + 4

• 2a + 2b + 4

• 8ab

• 4ab + 4

Simplify the expression: 2x + 1 + 7x 

• 10x

• 10

• 9x + 1

• 9 + 1x

How many terms does this expression have?
3x + 5y - 17 - 2y + x

• 3

• -17

• 5

• 1

How many terms does this expression have?
-18y + 7yz - 4z

• -18

• 3

• 7

• -4

Which of these are like terms in the following expression:
3x + 7 - 9x + 24y + 2x²

• 7, 24y

• 3x, 9x

• 3x, -9x

• 3x, -9x, 2x²

2r + 2 + 5r - 2 + r 

• 8r 

• 8r - 4 

• 12r 

• 7r + 4 + r 

Which one is the variable?
3w + 2w - (-7w)

• 3

• 2

• w

• 12

Simplify

3a+a

• 4a

• 2a

• 
• 3a+a

Simplify:  2x + 6x - 3x

• 5x

• 3x

• 8x - 3x

• 8x

Simplify:  x + x + 7 + 3

• No clue

• 2x + 10

• 2x + 7 + 3

• x2 + 10