Question

(4x)g=(-3x+9)¤ ayuda trigonometria

Answer 1

$\frac{3x[tex]3x-9= \frac{36x}{10}$-9}{9}= \frac{4x}{10} [/tex]
Entonces:
3x-9+$\frac{36x}{10}$=90
x=15