Question

решите уравнения
1)-21-1.7х=41.4+3.5х
2)-5y-19=6y+47

Answer 1

1) -1.7х-3.5х=41.4 + 21
 -5.2х=62.4
х= -12
2) -5у-6у=47+19
-11у=66
у= -6