Решите уравнения:1) y-4.2y+6.3y-9.3=02)-3.1x-2.7-4.6x+1.2=0.3

Question

Решите уравнения:
1) y-4.2y+6.3y-9.3=0
2)-3.1x-2.7-4.6x+1.2=0.3

Answer 1

1) y-4.2y+6.3y-9.3=0
3.1y = 9.3
y = 3
2)-3.1x-2.7-4.6x+1.2=0.3
-7.7x = 1.8
x = - 18/77