Adding and Subtracting Algebraic Expressions

Find the least common denominator of the expression

• 18

• 6x

• 3xy

• 6xy

Simplify the expression

• 
• 
• 
• 

• 4a/2

• 2a

• 3a/2

• 4a/4

• 2a/0
• 2a/5
• 2a/10
• 2a

Subtract the following expressions. Simplify completely.

• Can't subtract these

Find the sum. Make sure to include terms with variables in your expression first in your solution. (No spaces)

(3n − 1) + (4 − n)

Find the sum. Make sure to include terms with variables in your expression first in your solution. (No spaces)

Find the sum. Make sure to include terms with variables in your expression first in your solution. (No spaces)

(2.1q − 2) + (7.5q + 18)

Simplify the expression. Make sure to include terms with variables in your expression first in your solution. (No spaces)

-4y + 7 + 9y - 3

Simplify the expression. Make sure to include terms with variables in your expression first in your solution. (No spaces)

-15m + 9m