Question

-y/2+5x y/4 =1/2
dau coroana​

Answer 1

$- \frac{y}{2} + \frac{5 \times y}{4} = \frac{1}{2}$

$\frac{ - 2y}{4} + \frac{5y}{4} = \frac{2}{4}$

$- 2y + 5y = 2$

$3y = 2$

$y = \frac{2}{3}$