Simplifying Expressions

Simplify:6b + 7b - 10

• 3b
• 13b - 10
• 13b² - 10
• 3b²

What is the simplified form of this expression
3x+4+5x+3

• 15x
• 8x+7
• 7x+8

Simplify the Expression. 
9z  - 21 - 3z + 10

• Simplified
• 9z - 21 - 7
• 9z - 11 -3z
• 6z - 11

4a + 9 + a

• 5a + 9
• 14a
• 3a + 9
• 5a - 9

3 - 2a + 3a + 5a

• 5a+3
• 5a-3
• 6a + 3
• 8a+3

-4(8r + 3)

• -32r - 12
• 32r - 12
• -32r + 12
• 32r + 12

• -45x+72
• 45x+72
• -45x-72
• 45x-72

Simplify the expression:
6 + 2(7x - 3) 

• 12 + 7x
• 14x
• 14x + 3
• 9 + 7x

Which of the following is equivalent to 5(a + 6)?

• 5a + 6
• a + 30
• 5a + 30
• 5a - 30

Which of the following is equivalent to 2(c - 8)?

• 2c - 16
• 2c + 16
• 2c - 8
• c - 16