Combine Like Terms

Same Sign

100

-3x-14x

-17x

200

-21x-4x

-25x

300

-7y-2y

-9x

400

-10x-5x-25x

-40x

500

-23x-23x

-43x

Different Sign

100

4y-6y

-2y

200

-9x+8x

-x

300

-19y+23y

4y

400

-16z+32z

16z

500

-56+11

-45

3 Terms

100

3x+4x-12x

-5x

200

4y+2y-11y

-5y

300

12y+13y-8y

17y

400

14y-11y-1y

2y

500

3y-32y+11y

-18y

4 Terms

100

-10w-3w-4w+2w

-15w

200

3x-5x-3x-x

-6x

300

7q-6q+2q+3q

6q

400

8a-3a-5a+12a

12a

500

7v-12v+13v+v

9v

To simplify or not to simplify

100

2a+4a+6b-3b

Simplify. 6a+3b

200

8z-2z+4z 

Simplify. 10z

300

18x-51y+23z

Cannot simplify further.  

18x-51y+23z.  All three terms are represented with different variables: x, y and z which CANNOT be combined.

400

11c-12c+4d-2d

Simplify.  

-c+2d

500

s+s+s+3s-2s+11s+u

Simplify.    15s+u