Question

Решите уравнение
(4,5y+9)-(6,2-3,1y)=7,2y+2,8

Answer 1

4.5у+9-6.2+3.1у=7.2у+2.8

7.6у+2.8=7.2у+2.8

0.4у=0

у=0

Answer 2

(4,5y+9)-(6,2-3,1y)=7,2y+2,8
4,5y+9-6,2+3,1y=7,2y+2,8
7,6y+2,8=7,2y+2,8
0,4y=0
y=0