Simplifying expressions

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

• 15x
• 8x+7
• 7x+8

Tags

CCSS.7.EE.A.1

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

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

Tags

CCSS.7.EE.A.1

w + w + w could be simplified as?

• 3w
• 3
• w
• 0

Tags

CCSS.7.EE.A.1

r +10r

• 11r

• -11r

• 9r

• -11

Tags

CCSS.7.EE.A.1

4a + 9 + a

• 5a + 9
• 14a
• 3a + 9
• 5a - 9

Tags

CCSS.7.EE.A.1

3 - 2a + 3a + 5a

• 5a+3
• 5a-3
• 6a + 3
• 8a+3

Tags

CCSS.7.EE.A.1

6w - 6w + 6w + 9w

• w
• 15w
• 9w
• 6w

Tags

CCSS.7.EE.A.1

Simplify the expression: 7+3(1 - 2x) 

• 21 - 6x
• 10 - 2x
• 10 - 20x
• 10 - 6x

Tags

CCSS.6.EE.A.3

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

• 12 + 7x
• 14x
• 14x + 3
• 9 + 7x

Tags

CCSS.6.EE.A.3

Simplify   6(x + -2)

• 6x + -2
• 6x - 12
• 4x
• 6x - 2

Tags

CCSS.6.EE.A.3