Question

0.4×(6-4t)=0.5×(7-3t)-1.9

Answer 1

2.4-1.6т=3.5-1.5т-1.9
1.5т-1.6т=3.5-1.9-2.4
-0.1т=-0.8
т=-0.8:(-0.1)
т=8

Answer 2

thank you

Answer 3

0.4*6-0.4*4t=0.5*7-0.5*3t-1.9
2.4-1.6t=3.5-1.5t-1.9
(1.6-1.5)t=2.4+1.9-3.5
0.1t=0.8
t=8