Question

Решите уравнения на скриншоте.

Answer 1

1. 0.4x - 3.6 = 0.7 + 0.3x + 0.6
0.7x = 4.9
x = 7

2. -4x + 8 + 10x + 15 = -1
6x + 23 = -1
6x = -24
x = -4