Question

РЕШИТЕ УРАВНЕНИЕ!!! 1,2* (3b + 5 ) = 2* (2,4b -3,6)

Answer 1

1,2(3b+5)=2(2,4b-3,6)
3,6b+6=4,8b-7,2
3,6b-4,8b=-7,2-6
-1,2b=-13,2
b=11

Answer 2

1,2* (3b + 5 ) = 2* (2,4b -3,6)

3,6b+6=4.8b-7,2

3,6b-4,8b=-7.2-6

-1,2b=-13,2

b=13,2/1,2

b=11