Combining Like Terms and Equivalent Expressions

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

• 5x + 10y

• 5x + 4y

• 5x - 4y

• 5x -10y

Which expression is equivalent to 6y + 22y + y?

• 28y + 1

• 29y

• 22y + 7

• 29

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

• 8a + 2b + 4

• 2a + 2b + 4

• 8ab

• 4ab + 4

-6k + 7k=

• k

• -k

• 12k

• -12k

-4x - 10x

• -14

• 6x

• -6x

• -14x

-2x + 11 + 6x

• 8x+11

• 4x +11

• 4x

• 15x

a + a + a + a

• a + 4 

• 4a 

• a to the fourth power 

• 4a + 4 

y + x + y + y + x 

• 2 + 3 

• x + y 

• 2x + 3y 

• 5xy 

How many terms are in this expression: 2x + 5 - x + 6x + 1

• 3 terms

• 4 terms

• 5 terms

• 6 terms

Simplify: 6x + 12x + 3 y

• 21x

• 18x + 3y

• 72x + 3y

• 6x + 15y