First
add 7/4 to both sides
[tex]2=-\frac{7}{4}+\frac{1}{4}x[/tex][tex]\begin{gathered} 2+\frac{7}{4}=-\frac{7}{4}+\frac{7}{4}+\frac{1}{4}x \\ \frac{15}{4}=\frac{1}{4}x \end{gathered}[/tex]second multiply by 4
[tex]\begin{gathered} \frac{15}{4}\times4=\frac{1}{4}x\times4 \\ 15=x \end{gathered}[/tex]