Question

Can somebody please help 4=-0.8n

Answer 1

4 = -0.8n

To find n divide both sides by -0.8:

n = 4 / -0.8

n = -5

Answer 2

n = - 5

consider the rational form of - 0.8 = - $\frac{8}{10}$ = - $\frac{4}{5}$

Then 4 = - $\frac{4n}{5}$

multiply both sides by 5

20 = - 4n

divide both sides by - 4

n = - $\frac{20}{4}$ = - 5