(0.4x-2)-(1.5x+1)=2.8-4x
0.4x – 2 – 1.5x – 1 = 2.8 – 4x
0,4x – 1,5x + 4x = 2,8 + 1 + 2
2.9x = 5.8
x = 2
(0.4x-2)-(1.5x+1)=2.8-4x
0.4x – 2 – 1.5x – 1 = 2.8 – 4x
0,4x – 1,5x + 4x = 2,8 + 1 + 2
2.9x = 5.8
x = 2