0.9 (4x - 2) = 0.5 (3x - 4) + 4.4

0.9 (4x - 2) = 0.5 (3x - 4) + 4.4

3.6x - 1.8 = 1.5x - 2 + 4.4

3.6x - 1.5x = - 2 + 4.4 + 1.8

2.1x = 4.2

x = 4.2 / 2.1

x = 2

Выполним проверку:

0.9 (4*2 - 2) = 0.5 (3*2 - 4) + 4.4

0.9 (8-2) = 0.5 (6 - 4) + 4.4

0.9 * 6 = 0,5 * 2 + 4.4

5.4 = 1 + 4.4

5.4 = 5.4 - верно