Question

Solve -4b + 2 = 18

Answer 1

well first you got to minus 2 from each side which leaves you?

Answer 2

you want to isolate the variable \(b\). to do that you need to do:
\(-4b + 2 = 18\)
\(-4b + 2 - 2 = 18 - 2\)
\(-4b = 16\)
\(\large \frac{-4b}{-4} = \frac{16}{-4}\)
\(\color{green}{ b = -4}\)

check:
\(-4(-4) + 2 = 18\)
\(16 + 2 = 18\)
\(18 = 18\)