Question

-4(b+2)-(b-5)=-(7b+3-b)+3(b+4)

find for b

Answer 1

Multiply out the parentheses and combine the constants and terms with "b" separately.

The first step should lead you to
-4b -8 -b +5 = -7b -3 +b + 3b + 12
After the combining of terms you get
-5b -3 = - 3b +9
which can be rewritten (by adding 3 + 3b to both sides)
-2b = 12
Divide both sides by -2 for the final answer.