1.4(y-1)-2.6(1-2y)=3.4(1-y)
1.4y – 1.4 – 2.6 + 5.2y = 3.4 – 3.4y
1,4y + 5,2y + 3,4y = 3,4 + 2,6 + 1,4
10y = 7.4
y = 0.74
1.4(y-1)-2.6(1-2y)=3.4(1-y)
1.4y – 1.4 – 2.6 + 5.2y = 3.4 – 3.4y
1,4y + 5,2y + 3,4y = 3,4 + 2,6 + 1,4
10y = 7.4
y = 0.74