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Simplify by adding similar terms
1)     a + a + a + a =
 
2)     3v + 2v + 5v =
 
3)     a + b + a - b =
 
4)     4y + 5y + 3y − 4y =
 
5)      3s + 3s + 7s =
 
6)      2t + 4t − 7t − 7t =
 

Which of these sentences are true
7)      9 − 4 = 17 − 6
 
8)      21 − 17 = 16 − 9
 

Write True or False
9)     9 + 9 − 9 = 18 − 9
 
10)      9 X 8 = 27 + 55

**hint** Only like terms can be added together.
Answers