sederhanakanlah: 2-x per 3 + 2x+4 per 4

[tex] \frac{2-x}{3+2x+4} x \frac{1}{4} [/tex]
[tex] =\frac{8-4x}{3+2x+4} [/tex]
[tex] =\frac{2-x}{ \frac{3+2x+4}{4}} [/tex]
[tex]= \frac{8-4x}{7+2x} [/tex]
[tex] =\frac{8-2x}{7}[/tex]
hasilnya 8-2x/7