Variable expressions Worksheet

Find the value of the expressions for the given values of the variable(s).

1 a.   –7(7 y – 10), when y = –1
   
 
 
 
 
1 b.  
6 u  , when u = –9 and y = 9
y2
   
 
 
 
 
2 a.  
5 v  , when v = –4 and k = 4
k2
   
 
 
 
 
2 b.  
9 u + 3  , when u = 5
2
   
 
 
 
 
3 a.  
9 v  , when v = –5
–2
   
 
 
 
 
3 b.   (7 c – (–6))3, when c = –1
   
 
 
 
 
4 a.  
c – (–5)  , when c = 0
3
   
 
 
 
 
4 b.  
9 u  , when u = 9
–3
   
 
 
 
 
5 a.   –4(4 + 6 v), when v = 4
   
 
 
 
 
5 b.  
7  , when u = 5
5 – u
   
 
 
 
 
Page 2

Answer Key

1 a.  119

 
1 b.  -2/3

 
2 a.  -1 1/4

 
2 b.  24

 
3 a.  22 1/2

 
3 b.  -1

 
4 a.  3

 
4 b.  -27

 
5 a.  -112

 
5 b. 

 


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