3x - 2 = 4x - 5

--------- ---------

4 3


Odpowiedź :

[tex]\frac{3x-2}{4} = \frac{4x-5}{3} \ \ /\cdot12\\\\4(4x-5) = 3(3x-2)\\\\16x - 20 = 9x - 6\\\\16x-9x = -6+20\\\\7x = 14 \ \ /:7\\\\x = 2[/tex]