0.4(6-4t)=1.9-0.5(3t-7)
2.4 – 1.6t = 1.9 – 1.5t + 3.5
– 1,6t + 1,5t = 3,5 + 1,9 – 2,4
-0.1t = 3
t = -30
0.4(6-4t)=1.9-0.5(3t-7)
2.4 – 1.6t = 1.9 – 1.5t + 3.5
– 1,6t + 1,5t = 3,5 + 1,9 – 2,4
-0.1t = 3
t = -30