I put 50 points for this help me pls

Answer:
[tex]x = 26[/tex]
Explanation:
[tex]\frac{1}{3}(x-8) = 6[/tex]
[tex](x-8)= 6(3)[/tex]
[tex]x - 8 = 18[/tex]
[tex]x = 18 + 8[/tex]
[tex]x = 26[/tex]
Andre should have multiplied 3 with 6 instead changing sides and adding 6 to 8.