[tex]bonjour\\\\4 x - 7 = 6 x + 24 \\4 x - 6 x = 24 + 7 \\- 2 x = 31 \\x = - 31/2 \\\\[/tex]

Verified answer

Bonjour;

4x-7=3(2x+8)

4x-7 = 6x +24

-7-24 = 6x -4x

-31 = 2x

x= -31/2

x = -15,5