Combining like terms and order of operations

Combine like terms:
7x + 2x 

• ^_9x
• -9x
• 5x
• -5x

Combine like terms
-3x + 5x

• 8x
• 2x
• -8x
• -2x

3 + (5x2)²

• 53
• 103
• 13
• 169

(1/2)^{2 =} 

• 1/2
• pi
• 1/8
• 1/4

combine like terms:
9g + 4m - 8g

• g + 4m
• 17g + 4m
• g - 4m
• 5gm

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

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

12b + 14p - 7

• 12b + 14p -7
• 26b - 7
• 19p
• 26p + 7

-6(x + 2) - 2

• -6x
• -6x -10
• -20x
• -6x - 14

-5(a - 6) + 2a

• -7a + 30
• -7a - 30
• -3a + 30
• -3a + 30

(1/2)² + 3/4

• 1
• 1/2
• 1/4
• 1  1/2