Answer:
b = ( 4x + 10 - ax)/a
Explanation:
in order to solve for be , we will have to make b the subject of formulae
from the expression a(x+b)=4x+10.
a(x+b)=4x+10
we will open the bracket according to BODMAS rule
we have,
ax + ab = 4x + 10
collecte the like terms
ab = 4x + 10 - ax
divide both sides by a
ab/a = 4x + 10 - ax
b = ( 4x + 10 - ax)/a