Answer: 3
Step-by-step explanation:
6x + 4 = 9x - 5
6x - 9x = -5 - 4
-3x = -9
x = 3
[tex]\\ \sf\longmapsto 6x+4=9x-5[/tex]
[tex]\\ \sf\longmapsto 9x-6x=4+5[/tex]
[tex]\\ \sf\longmapsto 3x=9[/tex]
[tex]\\ \sf\longmapsto x=\dfrac{9}{3}[/tex]
[tex]\\ \sf\longmapsto x=3[/tex]