2

0n - 9 = 21 - 5n

n =
 

4

1

2

3

4

5

6

7

8

9

10

  3 of 50

Algebra 1  

 

 

n-3=2

n+5=7

2n+3=n+5

3n-5=3-n

How Many

5

10

20

30

50