Question

Решите уравнение:

а)3.5x-2/3x+3.8=4.28

б)4.7y-(2.5y+12.4)=1.9

Answer 1

а )1.2х=4.28-3.8
1.2х=0.48
х=0.4
б) 2.2у=1.9+12.4
2.2у=14.3
у=6.5