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Solve the equations below and write the algebraic steps. The first one is done for you.

a - 3 = 12
6
n + 7 = 18
2
4n + 6 = 22
a  - 3 + 3 = 12 + 3
6
a  x 6 = 15 x 6
6

a = 90

 

 
 

n = 22

 

 
 

n = 4

 

n + 1 = 5
7
7x - 8 = 6
n + 5 = 6
3
 
 

n = 28

 

 
 

x = 2

 

 
 

n = 3

 

7a + 19 = 68 8n - 21 = 11 3x + 23 = 56
 
 

a = 7

 

 
 

n = 4

 

 
 

x = 11

 

n + 7 = 12
6
n - 5 = 4
9
3n + 32 = 92
 
 

n = 30

 
 

a = 81

 
 

n = 20

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