Question

2) solve5 l9-5nl -7 =38

Answer 1

Your answer will be; 3.6

Answer 2

5 l9-5nl -7 =38

Add 7 to both sides of the equation:

5 l9-5nl -7 +7 = 38 +7

5 l 9 -5n l = 45

Divide both sides by 5

(5 l 9 -5n l ) /5 = 45/5

l 9 - 5n l = 9

Now, we have 2 solutions:

9-5n = 9

And

9-5n = -9

Solve each one

9-5n = 9

9-9 = 5n

0 = 5n

n= 0

9-5n = -9

-5n = -9-9

-5n= -18

n= -18/-5

n= 3.6