Question

4+2b=5+5(b+4)
Help pleasee

Answer 1

4+2b=5+5b+20

<=> -3b=21

<=> b=-7

Explanation:

<=> 4+2b=5+5b+5×4

<=> 4+2b=5+5b+20

<=> 2b-5b=5-4+20

<=> -3b=21

<=> b=-21/3

<=> b=-7