Relax

Respuesta :

Answer:

x=3.4

Step-by-step explanation:

[tex]0.5x + 4.2 = 5.9 \\ 0.5x = 5.9 - 4.2 \\ 0.5x = 1.7 \\ x = 1.7 \div 0.5 \\[/tex]