Question

calcule o valor de y na equação.

5y - 1 - 1= 1 - 2 - y quando U = Q
10 2 5

Answer 1

$\frac{5y-1}{10}- \frac{1}{2}= \frac{2-y}{5} \\ \\ \frac{5y-1}{10}-\frac{2-y}{5}= \frac{1}{2} \\ \\ \frac{10y-2-8+4y}{20} = \frac{1}{2} \\ \\ \frac{14y-6}{20} = \frac{1}{2} \\ \\ 28y-12=20 \\ \\ 28y=32 \\ \\ y= \frac{32:2}{28:}= \frac{16:2}{14:2}= \frac{8}{7}$

Answer 2

5y -1 -1= 1 -2 - y
5y +y= 1 -2 +2
6y = 1
y = 1/6