Answer:
x=2.5
Step-by-step explanation:
[tex]0.5x + 4 + 0.9x = x + 5[/tex]
collect like terms together:
[tex]0.5x + 0.9x - x = 5 - 4 \\ x(0.5 + 0.9 - 1) = 1 \\ 0.4x = 1 \\ x = \frac{1}{0.4} \\ \\ { \boxed{ \boxed{x = 2.5}}}[/tex]
