Answer :

eu99li
(9x-15)/4=x /*4...... 9x-15=4x........ 5x=15........ x=3
[tex] \frac{9x - 15}{4} = x[/tex]             / * 4 (both sides)
9x - 15 = 4x                          / - 9x (both sides)
-15 = -5x                              / ÷ (-5) (both sides)
x = 3