3.4-0.6b=2b-(0.4b+1)

Question

3.4-0.6b=2b-(0.4b+1)

Comments

после 2b точно знак минус ???

Answer 1

3,4-0,6b=2b-0,4b-1
3,4-0,6b=1,6b-1
-0,6-1,6=-1-3,4
-2,2b=-4,4
b=2