-0,2(4b-9)+1,4b=0,6b+1,8

Question

-0,2(4b-9)+1,4b=0,6b+1,8

Answer 1

-0.8b+1.8+1.4b=0.6b+18
-0.6b+1.8=0.6b+18
1.8=18
bЕ {}