Algebra basics

Simplify by combining like terms:

5a + 2b - 3a + 4

• 8a + 2b + 4

• 2a + 2b + 4

• 8ab

• 4ab + 4

5x + 3y + 5 + 4x + 3y + y + 8

• 9x + 7y + 13
• 6x + 2y + 2
• 25x + 2y + 3
• x + 7y + 12

Simplify the following expression:
(5 + 4x) + (2x - 8)

• 13 + 6x
• 6x - 3
• 6x - 13
• 6x + 3

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

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

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

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

Combine like terms:

5x² - 2x + 4 + 3x + 2x² + 8

• 7x² + x + 12

• 7x⁴ + 5x + 12

• 3x² + 7x + 10

• 20x⁶

Simplify by combining like terms:

 $3y^2-5x+2y-6x+8y^2+9y$  

•  $11y^2-11x+11y$  

•  $-2xy^2-4xy+17y^3$  

•  $11y^4-11x^2+11y^2$  

•  $22y^6-11x$  

How many terms does the following expression have: 3x-9+4+2x

• 1

• 2

• 3

• 4

-4(k - 7)

• -4k + 28
• -4k - 28
• 4k + 28
• 4k - 28

5(a + 6)

• 5a + 6
• a + 30
• 5a + 30
• 5a - 30