1)-28.7-16.28+х=-14.2
2)34.9-х+17.4-13.4=2.8
3)19.8-х+19.1-13.2=14.8
Помогите пожалуйста )

Х1 =-14. 2+28.7+16.28=30.75Х2 = 34.9+17.4-13.4-2.8=36.1Х3 = 19.8+19.1-13.2-14.8=10.9

1)-28,7-16,28+х=-14,2 -44,98+х=-14,2 -44,98+14,2=х -30,78=х х=-30,782)34.9-х+17.4-13.4=2.8 34.9+17.4-13.4-2.8=х 36.1=х х=36.13)19.8-х+19.1-13.2=14.8 19.7+19.1-13.2-14.8=х 10.8=х х=10.8