Question

(1) 1/6x-0.12=2/3x-0.42
(2) 2(x-4)+14=-10(5-3x)

помогите пж, заранее спосибо

Answer 1

1) 2/3 x - 1/6 x = 0.42 - 0.12
2/3 x - 1/6 x = 0.42 - 0.12
4/6 x - 1/6 x = 0.42 - 0.12
3/6 x = 0.3
0.5 x = 0.3
x = 0.3 / 0.5 = 0.6

2) 2х - 8 + 14 = - 50 + 30х
30х - 2х = 50 + 14 -8
28 х = 66
х = 2