Question

(Urgent) Solve:
z/4 + 5 ≥ 5.5

Answer 1

z/4 + 5 >= 5.5

     -5       -5      subtract 5 from both sides

z/4       >= 0.5  

x4              x4    times both sides by 4

z          >= 2.0

 

Answer 2

z/4 + 5  ≥ 5.5

subtract 5 from each side

z/4  ≥ .5

multiply by 4

z≥ 2