Question

Find $x$

$\frac{5x}{2}+\frac{3x}{4}\ge \frac{39}{4}$

Answer 1

$\frac{5x}{2}+\frac{3x}{4}\ge \frac{39}{4}$

$=>\frac{10x+3x}{4}\ge \frac{39}{4}$

$=>13x\ge 39$

$=>x\ge \frac{39}{13}$

$=>x\ge 3$