Jonah forgot to multiply the sum by two.
To find the correct answer we multiply his result by two:
[tex]\begin{gathered} 2(\frac{1}{4}x+2+6x-5)=2(6\frac{1}{4}x-3) \\ =12\frac{1}{2}x-6 \end{gathered}[/tex]
Then the correct answer is:
[tex]12\frac{1}{2}x-6[/tex]
