Algebraic Expressions

Simplify the following expression.

-3 + 5x + 8 + 2x

• 5 + 7x

• 5 - 7x

• -5 + 7x

• -5 - 7x

• 2a

• a²

3b x 2b

• 5b

• 6b

• 6b²

• 5b²

Combine like terms. Simplify. 
11g-9g+8g

• 10g
• 9g
• 2g
• 11g

7a + 5b - 2a - 4b

• 9a + b

• 5a + b

• 11a + 5b

• -9a - 9b

12a - 4b -7a + 2b

• 14a +5b

• 5a - 2b

• 7a - 5b

• 12a - 4b

Which expression is equivalent to:
d + d + d + 3 + 2

• 3d + 5
• d + 5
• 2d + 7
• 3d + 4

-6k + 7k=

• k
• -k
• 12k
• -12k